Discworld 13: Small Gods by Terry Pratchett

The thirteenth novel in the Discworld series from New York Times bestselling author Terry Pratchett.

Lost in the chill deeps of space between the galaxies, it sails on forever, a flat, circular world carried on the back of a giant turtle— Discworld —a land where the unexpected can be expected. Where the strangest things happen to the nicest people. Like Brutha, a simple lad who only wants to tend his melon patch. Until one day he hears the voice of a god calling his name. A small god, to be sure. But bossy as Hell.