Alchemy Well

The Alchemy Well is one of the alchemy machines left by the Neox. It is found in the ruins below Ayuthay.

Description
The Alchemy Well's encyclopedia entry reads as follows:
 * "This ancient machine was built by the Neox to create water in vast quantities. The machine can be put in reverse with the Arid Heat Psynergy from the Sand Prince Stone."

Story
The Alchemy Well is located in Ayuthay, which Matthew and co visit early in the game. Though it had already been activated some twenty years prior to the game's start by a mysterious Mercury Adept (Amiti's father), it was not fully operational because its counterpart, the Alchemy Forge had not been similarly restarted. Seeking to obtain the Insight Glass to restart the Alchemy Forge, Matthew and co set the Well into reverse by using the Arid Heat Psynergy. This allows them to get the Glass and thus, the Sol Mask, enabling the Alchemy Forge to be activated. However, once activated (and the Well's reverse setting turned off) the Well truly starts to operate, showering much of Ei-Jei with water, converting the arid lands into lush, fertile plains. What the party does not know is that this machine acts to power the Apollo Lens, a devastatingly powerful weapon seen in the game's finale.