Gertrude Chandler Warner

The Aldens are excited to meet their favorite celebrity-Walter the Cat, who makes the funniest videos on the Internet! And when this celebrity cat inherits a million dollars from his owner, he becomes even more famous! But someone seems to be angry about the will and is stealing things from Walters house. Is this cat too famous for his own good?

The Boxcar Children investigate a mysterious ghost with a glowing pumpkin head at a friend's farm.

The Alden children search for buried treasure on Blizzard Mountain, but a mysterious rival treasure hunter is determined to chase them off the mountain.

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

The Boxcar Children have been choosen to compete against another team to look for clues on a game show.

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

The Aldens search for carousel horses that have disappeared from an amusement park.

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.

When the children uncover a strange puzzle in a friend's back yard, it's the start of a "spy game" leading to gold. But first they must make sense of an old photo and a riddle, and learn just who is behind this mystery within a mystery.

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.