Erethizon Dorsatum--better known as Ereth, the self-centered, foul-tempered old porcupine--is having a birthday. And he fully expects his best friend Poppy, a deer mouse, to help him celebrate in a grand manner. But Poppy has gone off somewhere with her husband, Rye, and it appears she has forgotten all about it. "Belching Beavers," says Ereth, "I am not angry " (Though, perhaps he is--and more than just a little.)

Ereth knows his special occasion deserves a special treat--even if he has to get it for himself. And what treat could be more special than tasty salt? But the nearest salt...