Elderxoln, described by Cassian as a bastard child of the gods is an evil prophesied to rise up from the depths to destroy the world unless it is subdued by one wielding the Tear of Agia. Its coming was foretold in the Tome of the Deep Wrath, which has a tendency to drive insane any attempting to read it.

An order of cultists, including Gulric D'Toowop appear to worship him and are intent in bringing about his coming onto this plane.

The being is eventually revealed to be a beholder.

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