Creepella von Cacklefur helps Gorgo, the monster living in her moat, write a letter to the famous monster movie star Blobbina, and when they discover Blobbina has disappeared, they set out to find her.
Eight-year-old Nancy Drew teams up with friends Bess and George to determine who is responsible for the theft of the model volcanoes the students have built for a school project and why they were taken.
Christina, Grant, and a couple of new friends learn a lot about astronauts and the history of the space program as they try to figure out who stole a valuable moon rock from Space Center Houston.
The Alden children suspect that the other guests are somehow involved when things begin to disappear at the bed and breakfast where they are staying in Washington, D.C.
Amateur sleuths Robyn, Nick, and Trevor set out on a dangerous adventure to find out who is poaching grizzly bears and removing their gall bladders for use in alternative medicine.
Lifeguard Clay Gibson tries to clear his friend's name when he is suspected of stealing forty thousand dollars from the water park for which they work.
Seventeen-year-old Trent is helping his uncle film a television documentary about Scarlet Thunder, a stock car racing team, when he begins to suspect that someone is sabotaging the shoot.
Thea Sisters travel to Istanbul by way of the Orient Express to return a stolen wedding dress to a museum and try to spoil the Acrobat Thief's plan to swipe the artifact.
The Boxcar Children rush to investigate when it appears that someone is trying to rid the Ocean Adventure Park aquarium in Florida of its main attraction--a great white shark.