Crossbone Isle (Golden Sun)

Crossbone Isle is the first Golden Sun's featured Superdungeon, where challenging puzzles and the most powerful enemies and items in the game are found. The most fearsome enemy in the game resides at level 10 as its Superboss, Deadbeard.

How to get to Crossbone Isle
There are two methods for reaching Crossbone Isle.

The First Method
While taking the ship to cross the Karagol Sea, the player is allowed to select replacements for the four oarsmen who pass out. Selecting a certain group of four in the correct order will put the ship off course, and it will land on Crossbone Isle. Of course, at this stage of the game, it is not possible to fully explore the area.

The Second Method
In the second to last area of Suhalla Desert, cast Reveal near the statue in the sand. Follow the footsteps, and eventually a pillar only visible under the effects of Reveal will be reached. Use the pillar to cross the gap. Enter the nearby tunnel, follow the path, and exit into an enclosed area containing a red sandstorm. Enter the sandstorm, but instead of casting Douse to fight the monster creating the standstorm, wait for the sandstorm to carry the character off screen. The character will land in Crossbone Isle, rather than the entrance to Suhalla, as with the other sandstorms.

Dungeon Layout
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In Level 6 in particular, one can find the Venus Djinni Bane.

Enemies
Level 1: Hobgoblin, Virago x2, Mimic (outside the exit)

Level 2: Grizzly x2, Succubus

Level 3: Fendish Ghoul x2, Lich

Level 4: Gryphon x2

Level 5: Lizard King, Harridan, Stone Soldier x2

Level 6: Chimera x2

Level 7: Earth Lizard x2

Level 8: Poison Toad, Thunder Lizard x2

Level 9: Cerebus x2

Level 10: Mimic (on ship deck), Deadbeard

Items found
Mystery Blade, Storm Gear, Demon Mail...