Washoe County Library System

When their favorite pizza restaurant almost goes out of business, the Alden children try to help their friends stay open while they find out who is behind all their problems.

The Aldens take the field—and discover a mystery at the ballpark! The Aldens are excited to join Greenfield's baseball team, the Bears. But when their equipment goes missing, it's clear that someone doesn’t want them to take the field. Can the Aldens save the season?

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 Alden children save an old woman's house, land, and all the animals in her animal shelter from greedy contractors.

When the Alden children accompany their grandfather to the Snow Haven Lodge, a series of odd occurrences threaten to disrupt the annual winter games.

The mysterious disappearance of a reclusive neighbor's cat involves the Boxcar children in some complicated detective work.

The Alden children investigate when Mrs. Murray's jewels are stolen during a party for the Starlight Skating Troupe.

When they take their dog, Watch, for obedience training, the Alden children discover that some of the dogs in the class have vanished and decide to try to solve the mystery of their disappearance.

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