Nancy investigates a wild-animal show and reunites a Maharaja with his son, all with the help of an ivory elephant charm.

Ten-year-old Cam, possessor of a photographic memory, and her friend Eric investigate what seems to be a brief appearance of U.F.O.s.

"Cam Jansen must use her photographic memory to find two missing goldfish."--

Returning home to investigate the possible connection of his family's tea shop with smugglers, Seikei, now a samauri in eighteenth-century Japan, becomes involved in murder at a local puppet theater and saving the life of his sister's accused boyfriend.

After the death of Polly Portman, whose award-winning pies put the town of Ipswitch, Pennsylvania, on the map in the 1950s, her devoted niece Alice and Alice's friend Charlie investigate who is going to extremes to find Aunt Polly's secret pie crust recipe. Includes fourteen pie recipes.

"You are on a sailing trip with your family and two of your friends in the Carribbean [sic]. One night you stop on the island of Antigua. Some children who live there tell you that the island is haunted by a ghost. They are going to spy on the ghost as soon as the sun set. Should you go with them, or go by yourself to meet this ghost? Are you brave enough for Ghost Island?"--Page 4 of cover.

Cam Jansen must use her photographic memory to help find a magician's lost bird.

While using her photographic memory to find her missing science fair project, Cam accidentally locates two valueable gold coins.