"Every kid loves a good riddle, so what better way to get them reading and laughing?"

Shelley is excited over the fossil rock she found at the beach, but when it goes missing she suspects her cousin's friend, Marcus, of stealing it, until Topper, her cousin's dog, helps solve the mystery.

More than anything else in the world, Ali wants a pet cat for her birthday. Unfortunately her brother Jay is allergic to cats. One day, Ali discovers that something is sharing her clubhouse with her. To Ali's delight, the new resident is a beautiful white cat, who she names Snowy. Ali thinks that the clubhouse is the perfect home for Snowy. But is she right and, more importantly, is Snowy really hers to keep?

Josie is fascinated with the secrets of the prehistoric world. She and her grandfather, an amateur paleontologist, explore the beaches and cliffs near Stone Trees Cottage in Nova Scotia. Tiny bones have been discovered, but what are they from? As Josie searches for the answer, she is forced to cope with an accident and competition from an unpleasant neighbor. Time is of the essence, for she must find the answer before someone else does and before...