Gertrude Warner: 149 books

Katya, a young Russian gymnast, stays with the Aldens while she practices for the big competition. But someone doesn't want her to win!

The town of Greenfield is having an art contest to celebrate the work of local artists. The Boxcar Children are getting to know the artists and the gallery owner and learning all about art. But could the gallery be filled with stolen paintings?

The Aldens are visiting the New Jersey shore and enjoying the beach and the boardwalk attractions. A family friend has just bought an amusement pier, and the children are excited to help out. But there are rumors that the rides aren’t safe, and someone has stolen a zombie from the haunted house! Can the Boxcar Children find out what's behind all the trouble?

The Boxcar Children offer to help Aunt Jane's friend, Kay, fix up her run-down motel.

Someone tries to steal a horse from the Morgans' farm.

The Aldens travel to the Florida Everglades to search for a missing park ranger. While gathering clues, they learn about about his interest in the endangered Florida panther. Does the wild cat hold the secret to the ranger’s whereabouts?

While visiting Hawaii, the Aldens and cousin Soo lee wonder why everyone is silent when the black pearl story is told.

Someone has stolen jewelry from an antique store, and now Benny's cereal box is missing!

One day in the park, the Aldens' dog, Watch, comes across a mysterious box with a note inside. "Congratulations!" the note says. "You've found it!" The box is part of a fun new treasure-hunting game.

The Alden's investigation involves antique wooden horses on a merry-go-round near Cousin Joe's.

Someone is trying to keep Max Greene from inheriting his great aunt's estate.

A zookeeper at the Aldens’ local zoo is stealing the animals! How can the children stop a thief who has keys to all the cages?

The Aldens don’t believe the rumors that their cousin’s new house is haunted, but they can’t explain the mysterious singing they hear. Could there really be a ghost?

The Aldens spend their vacation in Elmford and get jobs at the old general store! But the girl they work with won’t answer any questions about herself. What is she hiding?