The Aldens take part in a hunt at a gem mine and discover that someone is out to sabotage the contest.

When the Aldens agree to watch the house of a local author who has written a book about a vampire, they end up investigating activities that are suspiciously similar to those in his book.

At an old library, the Alden children discover a boy who needs their help and a stranger who is after a valuable object they found in the library.

The Aldens are volunteering at the local recycling center, where they find plentyof things that can be reused, including a pinata that Benny takes home. But when the center is vandalized,the Boxcar children have a mystery to solve. is there treasure amidst the junk?

"What will the Aldens discover on a vacation to a deserted island? Adapted from Gertrude Chandler Warner's story of the same name, this early reader allows children to start reading with a Boxcar Children classic"--Publisher's description.

A young Canadian visitor helps the Alden family solve a mystery involving a lost coin collection.

At the same time that the Alden children's efforts to raise money for a new hospital wing are being sabotaged by nasty tricks, they find their attempts to befriend the new girl Beth frustrated by her strange behavior.

While helping out part time in a pet shop, the Alden children discover an employee who is smuggling and selling exotic animals.

"The legendary creatures around the world. In this adventure, the children travel to Iceland to look into stories of mischievous elves causing trouble. The legends of huldufolk, or hidden people, go back a long way in the country, but are elves really the cause of the problems,or is there a more natural explanation for the strange events on the island?"--Provided by publisher.