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Treasure Isle

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Treasure Isle, the island at the northeastern corner of the world of Weyard.

Treasure Isle (大イースト海北の宝島, N Great East Sea's Treasure Island) is an optional dungeon-style location found way out near the top of the Great Eastern Sea in Golden Sun: The Lost Age. It is essentially two dungeons in a row, with one much harder and accessible much later than the other; the easier first part can be explored as soon as Felix gets the Grindstone and its Grind Psynergy in Lemuria. The later part can only be explored after the Reunion, when Isaac's party joins up with all their own Utility Psynergy items, including the Lifting Gem and its Lift Psynergy. Among the stronger equipment are the Iris Robe and the Fire Brand, and at the end of the dungeon is one of the most dangerous opponents in the entire series to battle, the Star Magician, who guards the Summon Tablet for the Azul Summon sequence.

Treasure Isle is initially filled with ancient pirate treasure. Just prior to the start of Golden Sun: The Lost Age, the pirate Briggs discovers the isle and loots whatever treasure he can, but due to a puzzle that blocks off non-Adepts without the ability to grind down giant spires of earth, a large portion of Treasure Isle's loot remains untouched.

Walkthrough[edit]

Earlier portion[edit]

You are forced to step on the red button to make the giant earth spires rise up out of the water, and they can only be brought back down with the Grind Psynergy found in Lemuria.

Once you have found the Grind Psynergy in Lemuria, sail up into the northeastern-most island on the world map, and go around into it counterclockwise to bypass the rocks that prevent your ship from being able to just go up straight into it. Disembark on the island's beach and enter the location. At the upper left part of the first cave-like screen, there are three open doorways lined in a row, with two of them near an earth pillar. The two cave doorways near earth pillars contain chests that are empty; Briggs and his pirates had previously looted Treasure Isle to a degree, but the leftmost door contains unopened chests containing 161 Coins and a Lucky Medal. Proceed to the more separated fourth cave doorway to the upper right to enter the next room.

You enter a watery room with hoppable platforms and no less than six chests to your left which, unfortunately, also had been looted by Briggs. When you hop straight up, though, you are forced to land on a red button that immediately makes four enormous earth spires rise straight out of the water, which would block you from going any further if you do not have the Grind Psynergy. If you do, you can use it on the giant earth spire to your right to return it into the water, and be able to hop right and enter the next room to the southeast. The dungeon from here on out is untouched by Briggs.

In the next watery room, hop your way down and right, and work your way counterclockwise to the area where there is an earth pillar bordering a red button. Do not move the earth pillar onto the red button; rather, move it down and left one space each so that it is positioned below the button. Retrace your steps until you are at the spot two tiles below where the earth pillar is now positioned, and cast the Move Psynergy to remotely move the pillar one tile up onto the red button. The giant earth spire in this room rises, but without trapping you behind it because you had the button pressed from the bottom part of the screen, so now you can climb up to the tightrope and proceed right and into the doorway at the upper right corner of the room.

A battle with the strong Ocean Dragon enemies in the deeper half of Treasure Isle.

In the third watery room, hop up twice to step onto another red button, which makes three giant earth spires rise out of the water. To both pass the area and collect its treasure, simply Grind the right earth spire and hop north beyond it. Climb up to a vertical tightrope and follow the elevated path south and west to reach a chest containing the Jester's Armlet. Return back down to below the tightrope, hop left, cast Move on the earth pillar to move it left into the hole, and hop your way north to the doorway at the top part of the screen.

In the next area, which is comprised of narrow, winding cave paths with a fork going up and down, take the lower fork and go to the west end of the screen, where there is a chest that reveals itself to be a Mimic when opened. It rewards you with a Power Bread when felled. Go south of where you fought the Mimic to exit out of a doorway leading back into the first watery room, hop down, move the earth pillar two spaces left into the hole, hop down once and left twice to get onto a small island with a pillar with a ladder on it, climb it, hop left across an elevated earth spire, and reach the six chests in the upper left part of the room. They contain a Rusty Axe that is reforged into the Viking Axe in Yallam, a Cookie, a Sylph Feather, a Star Dust, 911 Coins, and a Psy Crystal.

The earlier portion of the dungeon is considered complete once all of these chests are looted, but if you are playing this dungeon after Lemuria but before Isaac's party joins the team, you will not have the Psynergy needed to progress into the later, deeper, tougher portion of Treasure Isle, so you would have to cast Retreat now. Otherwise...

Later portion[edit]

You only need to Lift the center lower boulder to access both the Jupiter Djinni Gale and the Fire Brand. (The lower left boulder shown lifted here is incidentally unneeded because Gale will not try to run away when you approach.)

Return to the branching cave-hallway room where you fought the Mimic, and take the fork up to enter the lower floor. A spherical boulder blocks your path into the rest of the first room of the lower floor, but once you cast the Lift Psynergy on it to bypass it, you can begin the second half properly and start fighting the far more powerful monsters down here. First, go west to find a chest containing a very powerful robe named the Iris Robe, then go down the narrow path below the chest and follow it to another Lift-able boulder at the left part of the screen. Past that is a doorway to the next room.

The next room, arguably the most noteworthy room in Treasure Isle outside of the last chamber, is a large puzzle room similar to the main puzzle room in Shaman Village Cave, with no less than six Lift-able boulders to carefully choose from to try to get three rewards: A chest, a Jupiter Djinni, and the exit to the next room. The room requires two visits to get all three, but the only boulder you would ever need to Lift in order to get both the chest and the Djinni is either the lower center one or the lower right one. Walk past it to reach and climb up the lone wall ladder near the center of the room, hop right, and go down the right tightrope to get to the chest containing the powerful Fire Brand. Hop back left, get to the second tightrope from the left, hop onto its top part, but instead of climbing across it, drop off it to the left so you can climb onto the leftmost tightrope and go down. Now you can battle the Djinni (which will not fly away from you as you approach, incidentally), and earn the Jupiter Djinni Gale. Exit back out of the bottom doorway to the room and reenter to perform a puzzle reset.

The depths of Treasure Isle is the abode of the optional boss Star Magician, who guards the Azul Summon Tablet.

To get past the large Lift-able boulder room, Lift the lower left boulder, then Lift the upper left boulder. Hop right across the top portion of the room, then Lift the upper right boulder. Hop left to climb up the wall ladder at the center of the room, hop left, walk down across the second tightrope from the left, and hop right twice to climb down a ladder leading to the lower right corner of the screen. There is a doorway leading up and a doorway leading down, but the doorway leading down just leads back into the Iris room, while the doorway leading up connects to the dungeon's penultimate hallway.

In the narrow cave hallway beyond the Liftable boulder room, there is a fork branching between up and right, and ordinarily the fork up leads to a dead end, but it is possible for this fork to be extremely valuable: If Isaac's party joined without all seven of the original game's Venus Djinn for whatever reason, one of the missing Venus Djinn will be available again to collect at the end of this dead-end, without a fight. At any rate, take the right fork to reach the doorway at the top of the screen, and the last chamber of Treasure Isle is the site of the battle with the optional boss Star Magician. Easily the most tricky and strategic boss encounter in GBA Golden Sun games, the Star Magician will mount considerable resistance against your quest to collect the dungeon's ultimate reward that he stands in front of, the Azul Summon Tablet. Once you have collected the summon, cast Retreat to return to the entrance to the earlier part of Treasure Isle.


Enemies[edit]

Bestiary of Treasure Isle (Overworld)
Monster Name LVL HP ATK DEF AGI EXP Coins Weakness Drop Drop Rate
Pteranodon 31 242 291 100 166 341 174 Star jupiter.gif Nut.gif Nut 1/16
Slayer 31 220 300 90 158 344 254 Star jupiter.gif Sleep Bomb.gif Sleep Bomb 1/32
Talon Runner 31 228 303 88 159 367 215 Star jupiter.gif Bramble Seed.gif Bramble Seed 1/32
Wargold 31 202 303 78 181 321 226 Star jupiter.gif Oil Drop.gif Oil Drop 1/16
Wolfkin 31 213 309 89 174 337 219 Star mars.gif Weasels Claw.gif Weasel's Claw 1/16
Bestiary of Treasure Isle (Pre-Reunion)
Monster Name LVL HP ATK DEF AGI EXP Coins Weakness Drop Drop Rate
Cannibal Ghoul 31 249 274 82 80 194 160 Star mars.gif Antidote.gif Antidote 1/32
Earth Golem 31 298 299 114 70 218 183 Star jupiter.gif Giant Axe.gif Giant Axe 1/128
Harridan 27 231 261 66 118 150 164 Star jupiter.gif Nut.gif Nut 1/32
Horned Ghost 31 236 268 78 116 199 116 Star jupiter.gif Elixir.gif Elixir 1/32
Stone Soldier 28 179 241 105 104 98 98 Star mercury.gif Elixir.gif Elixir 1/32
Turtle Dragon 30 340 305 100 117 424 251 Star mars.gif Blessed Mace.gif Blessed Mace 1/128
Mimic (unique) 34 879 333 103 196 1336 677 Star mars.gif Power Bread.gif Power Bread 1/1

Enemy Formations (Pre-Reunion Area)

  • Group 1: Harridan x1-2
  • Group 2: Turtle Dragon x2
  • Group 3: Stone Soldier x1-2
  • Group 4: Horned Ghost x1, Cannibal Ghoul x0-1
  • Group 5: Harridan x1, Turtle Dragon x0-1
  • Group 6: Earth Golem x1, Cannibal Ghoul x0-1
  • Group 7: Earth Golem x1, Stone Soldier x0-1
Bestiary of Treasure Isle (Post-Reunion)
Monster Name LVL HP ATK DEF AGI EXP Coins Weakness Drop Drop Rate
Gillman Lord 36 284 456 136 174 459 257 Star mars.gif Tear Stone.gif Tear Stone 1/64
Great Seagull 36 266 411 93 206 363 211 Star jupiter.gif Sylph Feather.gif Sylph Feather 1/64
Ocean Dragon 36 473 478 154 143 590 307 Star mars.gif Tritons Ward.gif Triton's Ward 1/128
Puppet Warrior 36 310 469 180 125 555 283 Star jupiter.gif Psy Crystal.gif Psy Crystal 1/64
Pyrodra 36 384 451 125 125 568 387 Star mars.gif Salamander Tail.gif Salamander Tail 1/64
Sea Hedgehog 36 177 402 160 188 319 145 Star mars.gif Potion.gif Potion 1/32
Jupiter Djinni (Gale) (unique) 36 980 309 97 277 1197 756 Star venus.gif N/A
Star Magician (boss) 46 7486 460 139 268 7866 5566 Star mars.gif N/A
Thunder Ball (boss) 46 280 329 123 219 296 243 Star venus.gif N/A
Refresh Ball (boss) 46 360 317 124 136 448 278 Star mars.gif N/A
Guardian Ball (boss) 46 520 317 127 292 439 289 Star jupiter.gif N/A
Anger Ball (boss) 46 460 357 125 173 387 30 Star mercury.gif N/A

Enemy Formations (Post-Reunion Area)

  • Group 1: Sea Hedgehog x1-3
  • Group 2: Great Seagull x1-2, Sea Hedgehog x0-1
  • Group 3: Gillman Lord x1, Puppet Warrior x0-2
  • Group 4: Puppet Warrior x1-3
  • Group 5: Pyrodra x1, Great Seagull x0-2
  • Group 6: Pyrodra x1, Sea Hedgehog x0-1
  • Group 7: Ocean Dragon x1, Pyrodra x1
  • Group 8: Ocean Dragon x2

Collectibles[edit]

Treasure Isle has loads of treasure chests, but all but two of the ones that could be reached from as soon as the location can be accessed are empty because they have already been looted by Briggs and his pirate crew prior to the beginning of The Lost Age. In the entrance hall, before the first "main" room, there are several rooms that have been explored by Briggs. Strangely, they did not loot the one room that didn't require pillar moving, and these two chests can be opened as soon as the Lemurian Ship is acquired:

Coin.gif 61 Coins: In the left of the two chests in the left-most sub-chamber of the entrance hall.
Lucky Medal.gif Lucky Medal: In the right of the two chests in the left-most sub-chamber of the entrance hall.

Later, after visiting Lemuria, the dungeon can be explored a little more thoroughly using the Grind Psynergy. This earlier, easier part of the dungeon, has seven chests that the pirates were simply unable to loot, due to the traps in the dungeon:

Coin.gif 911 Coins: In the bottom left of the six chests in the first "main" room.
Cookie.gif Cookie: In the bottom right of the six chests in the first "main" room.
Psy Crystal.gif Psy Crystal: In the bottom center of the six chests in the first "main" room.
Rusty Axe.gif Rusty Axe: In the top center of the six chests in the first "main" room. Is reforged into the Viking Axe at Yallam.
Star Dust.gif Star Dust: In the top right of the six chests in the first "main" room.
Sylph Feather.gif Sylph Feather: In the top left of the six chests in the first "main" room.

Jesters Armlet.gif Jester's Armlet: In the lone chest in one watery room to the east with raisable Grindable pillars. Reached by raising all the pillars in the room, and then casting Grind on the rightmost pillar.


Whereas these collectibles repose in the deeper, more challenging portion explorable only with the Lift Psynergy gained late in the game, after the Reunion:

SummonIconAzul.gif Azul: This Summon tablet lies at the final room of the dungeon, guarded by the optional boss Star Magician. Essentially, the dungeon's "main" goal and reward, following one of the main optional "superboss" battles of the game.

Jupiter djinn.gif
Gale: In the room with Lift-able boulders in the style of a similar puzzle in Shaman Village Cave. Both this Djinni and the chest in this room can be collected just by Lifting the lower center boulder. Gale must be battled to be acquired.
Venus djinn.gif
A Venus Djinni may be found here near the entrance to the final room, depending on whether Isaac's party has joined Felix with less than all 7 of the first Golden Sun game's Venus Djinn in his party's inventory. This will be one of the missing Venus Djinn from the first game making a reappearance for the party in The Lost Age to collect. You do not need to engage it in combat in order to obtain it.

Fire Brand.gif Fire Brand: In the chest in the room with Lift-able boulders in the style of a similar puzzle in Shaman Village Cave. Both this chest and the Jupiter Djinni in this room can by collected just by Lifting the lower center boulder.
Iris Robe.gif Iris Robe: In the chest in the room where you first enter the deeper part of the dungeon.

Trivia[edit]

Positioning Felix in the shown position allows you to skip completing a puzzle to obtain Gale.
Due to a collision oversight, it is possible to skip the puzzle that is normally needed to be solved in order to collect Gale. As you explore Treasure Isle you eventually come across a boulder that needs Lift cast on it in order to proceed further into the dungeon. Immediately after this boulder is a configuration of rocks and a pillar designed to allow players to easily backtrack through the dungeon once they have completed it. However, positioning Felix in a semi-precise way allows you to cast move on the pillar and move it left allowing you to progress. This skips the need for completing the puzzle to obtain Gale since you can just do the room backwards and talk to Gale.
Dungeons
Dungeons in Golden Sun
Sol SanctumGoma CaveKolima Forest / Tret TreeBilibin CaveMercury LighthouseFuchin Falls CaveMogall ForestAltin PeakLamakan DesertVale CaveVault CaveAltmiller CaveGondowan CaveColosso FinalsLunpa FortressSuhalla DesertSuhalla GateBabi Lighthouse / Tunnel Ruins / Venus LighthouseCrossbone Isle
Dungeons in Golden Sun: The Lost Age
Kandorean TempleDehkan PlateauYampi DesertAlhafran CaveAir's RockMadra CatacombsGondowan CliffsKibombo MountainsGabomba StatueGabomba CatacombsLemurian ShipShrine of the Sea GodTaopo SwampAqua RockGaia RockIzumo RuinsAnkohl RuinsTundaria TowerShaman Village CaveTrial RoadJupiter LighthouseMagma RockMars LighthouseTreasure IsleYampi Desert CaveIslet CaveAnemos Inner Sanctum
Dungeons in Golden Sun: Dark Dawn
Goma Plateau / Tanglewood / Abandoned MinePsynergy Training GroundsGoma Highlands RoadKonpa Ruins / Konpa CavePassaj Mountain ClimbBarai TempleThe OuroborosHarapa RuinsCraggy Peak RuinsTeppe RuinsPort Rago CanalPhantasmal BogKolima ForestTalon PeakBelinsk RuinsWarrior's HillYamata RuinsBurning Island CaveLonely Island RuinsGaia Falls IsletSnowdrift ShrineApollo Ascent / Apollo SanctumLost ShipOtka IslandCrossbone Isle
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