Gertrude Chandler Warner

Benny anticipates making friends with the new kid down the street, but when he finds out that she's a girl, he is very disappointed.

The Boxcar children uncover a mystery on a train trip from Boston to San Francisco.

"The Aldens visit a dinosaur dig in Montana and soon become involved in a mystery involving missing dinosaur bones"-- The Aldens are visiting a real dinosaur dig in Montana, in an area full of fossils and caves! But the bones of a rare dinosaur have gone missing, and when the children begin to search for clues they hear strange noises in the caves and discover mysterious tracks! Why are bones disappearing? And could there be a real-life dinosaur...

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 until mysterious events threaten to ruin everyone's preparations. Can the Aldens figure out what's going on and help their friends save the celebration?

When Walter the Cat, a local cat that has become famous for funny videos online, inherits a million dollars from his owner, the Aldens must find out who might be after the cat's money.

"The winter sports season is here, and the Aldens are excited about all the snow activities--especially snowboarding. But soon they find themselves in the middle of a mystery surrounding a star athlete and a stolen snowboard"--

"Jessie and Benny are participating in the Great Greenfield Bake-Off, a local baking competition for kids. But ingredients get mixed up during the competition and then the power goes out. Is someone trying to put an end to the contest?"--

A friendly writer with a metal detector, the mysterious inhabitants of a tower house, and the discovery of a locket in the sand are ingredients for the Aldens' latest mystery.