Third-grader Todd, suffering from a run of bad luck, brightens up when he learns that the unit on spiders he has been forced into at school--Todd hates spiders--may actually teach him a way to find the thief of his beloved baseball card collection.
Noelle and Todd hope to impress their new third grade teacher by being the first to use his clues to figure out who sent an anonymous note to another classmate.
While visiting their friend Wallis and her adopted daughter on Mount Desert Island, Maine, Josh, Dink, and Ruth Rose investigate why three white wolf cubs were stolen, and by whom.
Thomas and his bionic dog McGrowl investigate when it becomes obvious that something is not quite right at Hiram Biddle's new obedience school for dogs.
McGrowl, a bionic superdog, is invited, along with his boy Thomas, to visit his original owner Edwina Tuttle, and finds himself on a wild goose chase, courtesy of the evil Milton Smudge.
