When Ruth Rose and her friends, vacationing in Florida, discover that her grandmother is about to invest in a project to recover sunken treasure, they stumble upon evidence that the entire plan may be a fraud.
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.