Pashki: the ancient Egyptian art of moving like a cat. The Cat Kin: London's most unusual after-school club. The Cat Kin are not the only ones with extraordinary skills. Ben Gallagher has stumbled on a far more sinister gang, ruled over by a man with a horrific past. Deep beneath the city streets hides the deadly secret that Ben and Tiffany must uncover – but can the evil be stopped in time? Even with the help of their remarkable new teacher Geoff White, no-one can hope to escape unscathed when cat meets polecat...