The Wraith is damaged during yet another escape from Bloth and the only nearby port is Octopon, but it's in ruins and overrun by the servants of the Dark Dweller.

Blinded by greed, Ioz tries to steal a treasure from a seemingly deserted ship. Unfortunately, it appears that the ship is full of ghosts, who want to make Ioz one of them.

While washed ashore Ren and Niddler encounter "the Dagron Master". He offers to help them to find one of the Treasures. In the middle of journey, Ren finds he has been tricked and is turned into one of the reptiles.

Two strange creatures in control of a moving island interrupt Bloth just as he is about to capture Ren. They then blackmail Ren and Bloth, chaining the two together and making them play their deadly game while competing with their best warriors while betting on the contest.

When Ren and his crew are taking a break back in Octopon, the Queen of the monkey birds shows up asking Niddler for help. She says that there is a plague on Pandawa and that Niddler needs to protect the egg of the future queen. Ren and Niddler fly ahead, but there may be more to this plague than a simple disease.

The crew is forced to go to port to buy supplies after Konk destroys what they had gathered. There, Ren bumps into Solia, Ioz's sister, who is a pickpocket with an eye to go hunt a treasure located on Arakna Island, the most dangerous island in Mer. When Ren and Ioz refuse, she steals the crew's gold and the compass and gets Konk to help her while Ren chases after her to retrieve the stolen compass.

Bloth comes up with a new plan after talking to a soothsaying creature who says that Ren is the only one destined to collect the treasures. He decides to become Ren by swapping bodies with him using a potion made by Morpho. He manages to catch Ren, but not without Niddler who he makes Konk swap bodies with to avoid suspicion. The potion has a drawback that any mirror will show their true identities.

After a long period of no luck with locating the Eighth Treasure, the crew's luck changes, and they find it--in the shape of a living being, a little blue furry creature--on an island of vicious, man-hating Amazon-like warrior women that take Ren and Ioz captive but allow Tula to join their ranks.