Can a fish really be responsible for wrecking Dolos's boat, sinking the Aronnax, and almost destroying the Rover? Fontaine believes so-and it's invaded Jeffrey's home on the Aronnax. How can she get rid of it and its bad luck?

The Nektons are trying to identify a unique life form. They've never seen it- they've only heard its sound: "Bloop". Just as Ant discovers its true nature, a huge underwater mining machine threatens to destroy it!