Presents three adventures of the Alden siblings as they investigate mysteries involving library gargoyles that move on their own, a missing pop s

The Alden siblings continue their mission to return lost artifacts around the world by visiting the Great Wall of China and an elephant reserve i

Three adventures of the Alden children, who once lived on their own in a boxcar.

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

"Henry, Jessie, Violet, and Benny didn't think the old trunk in their house held anything interesting. But an unusual statue they find insides le

"The Aldens travel to Australia and Antarctica. But someone they count on is working for their rivals, the Argents! Can the children keep the art

When Henry, Jessie, Violet, and Benny boarded a train to help the Reddimus's Society return a stolen treasure, they didn't plan on traveling arou

The Aldens are visiting friends for a big Dia de los Muertos celebration. The kids love learning about the holiday and helping out--that is, unti

Three mysteries take place at an amusement park, a zoo and on a camping trip.

Presents three adventures of the Alden siblings as they investigate mysteries involving Walter the famous cat, a ghost at Hawthorne School and Co