The once peaceful planet of Dellah lies in ruins. The god-like beings who infest the place have lured the inhabitants into holy wars, suicide cults and genocidal pogroms. As they run out of victims, the deities plan to invade more planets — and other races are preparing pre-emptive strikes to stop them. Humankind's small sector of the galaxy is about to become the battleground of leviathans. There is just one hope. Professor Bernice Summerfield is, surprisingly, alive and well. And she's coming home. Bernice and her friends are determined to dispose of the gods once and for all — at any cost.