The Tralü

Description
The Tralü is a monster who lives in the caves up in the cliffs of Citadel Island, and who no one was sure actually existed, until it was killed by Twinsen when he was freeing Raph the Lighthouse keeper.

The Tralü has two mini-Tralüs, possibly offspring, who Twinsen encounters in the caves first. Unlike the smaller ones, the bigger Tralü has two attacks, one being the green darts that it shoots from it's mouth and the second being it's spin attack. The two smaller ones only have the dart attack.

Role in Twinsen's adventure
When Twinsen discovers Raph captured by the Tralü, about to be turned into his dinner, Twinsen goes through several parts of the cave to reach and kill the Tralü, and free Raph, so the Weather Wizard can use his Lighthouse for a spell.