When Jazz's pet piglet gets sick and the veterinarian suspects it was poisoned, she and Milo use their detective skills to try to figure out who did it.
Illustrations and rhyming text portray a hobby gone awry, as Bert's collection of exotic pets seems on the verge of breaking into a quarrel, and perhaps a rumpus, as well.
Seeing Jane's dog, Yum-Yum, help cheer up children in a cancer ward makes Zoe think about having her puppy, Sneakers, trained to do therapy, too, especially when Yum-Yum becomes very ill.