Books with title The Case of the Bad Apples: A Wilcox

Wilcox and Griswold are on the case, trying to discover who poisoned the apples Porcini pigged out on. Was it Sweet Pea, the piglet next door; Herman the Rat; or Hot Dog the nosy pooch? Who had motive, means, and no alibi? Follow the clues and figure out who was behind Porcini's terrible tummy ache.