Gertrude Chandler Warner
A hip new doughnut shop known for its bizarre recipes is opening up in Greenfield. At first, the owners of the other doughnut shop in town, Delilah's, aren't worried. But when the new shop starts making doughnuts that look just like some of Delilah's greatest hits, the Boxcar Children must figure out if it's just a coincidence or if someone from the new shop is stealing Delilah's recipes.
The Boxcar Children are helping the Heart and Hands group fix up the old Bugbee Mansion. The Aldens begin to explore the mansion, discovering hidden rooms and odd noises coming from the walls. Most intriguing is a secret staircase, leading to a room that no one knows about—no one except the thief!
Aunt Jane takes the Aldens to Florida to visit her friend Kay! Kay owns an old motel, but it's so rundown she thinks she might have to sell it. The Boxcar Children are happy to help her fix things up, but soon they learn someone is trying to keep the motel closed...forever.
The Aldens spend their summer traveling in a houseboat! But when a black car shows up at every place they dock, the children begin to think someone is after something on the boat. Can the Boxcar...
On their trip to Oregon, the Aldens are excited to find out that Watch has the right skills to be a search and rescue dog! When they start training him in the woods one of the first things he "rescues" is a backpack filled with valuable jewelry—and it fell out of a plane! How could that have happened? When the children try to return the backpack to its owner, the mystery becomes even deeper!