Nick and his friend Marta decide to investigate when a mysterious fire starts near a Florida wildlife preserve and an unpopular teacher goes missing.

While spending the winter of 1947-1948 in Miami Beach with her family, ten-year-old Sally makes up stories, casts herself in starring roles in movies, and encounters a sinister stranger.

With their father jailed for sinking a river boat, Noah Underwood and his younger sister, Abbey, must gather evidence that the owner of this floating casino is emptying his bilge tanks into the protected waters around their Florida Keys home.

Ten-year-old Beans Curry, a member of the Keepsies, the best marble playing gang in Depression-era Key West, Florida, engages in various schemes to earn money while "New Dealers" from Washington, D.C., arrive to turn run down Key West into a tourist resort.

"Marine biologist Doc Ford has a new mission for Sharks Inc.: visit Sanibel Island's remote Bone Field to find a wild orange tree that's survived a disease destroying Florida's citrus. There, the members of Sharks Incorporated find oranges unlike any they've ever seen, but can't find the tree Doc needs. Worse, the area is protected by a massive saltwater crocodile. What the team doesn't expect is to meet a reclusive woman who threatens to call the...