When mysterious things start happening at Camp Crump, they call in the intrepid detective Investigator. Each page has several questions about the illustration.

When the Aldens arrive at Camp Seagull, everything goes wrong. They investigate to see if someone is cheating in order to win the annual camp Olympics.

The Aldens are going camping! But after they hear loud music in the middle of the night, notice their lantern is missing, and find a frightening note, the Boxcar Children must find out who is behind the pranks to save their vacation.

The Boxcar Children know how much work it takes to live in the wilderness. They also know how much fun it can be! The children love exploring and learning new things at a primitive skills summer camp. But when strange things start happening around the camp, they need to use another of their favorite skills—mystery solving!

If Willie would change into clean clothes while at summer camp, he may find the joke book which Crow has hidden from him.

While on a camping trip with their grandfather, the Alden children try to find out about the loud music and missing food that threatens to scare away other campers