The sixth book in the rat-tastically brilliant Ratbags series by award-winning and bestselling author Tim Harris and the brilliant creator of laugh-out-loud illustrations Shiloh Gordon.

Swept down the drain, the ratbags are trapped in the city sewers - the deep, dark realm of Crusher the Crocodile. How will they get out? Will infamous sewer-rat Sludge help them escape Crusher's hungry jaws? Or will Jigsaw find a way to get them all flushed out?