Gertrude Chandler Warner
Tree House Mystery
Henry, Jesse, Violet, and Benny Alden have new neighbors, and they're all building a tree house! From up high the Aldens can see a strange round window on the house next door—but nobody can find the window form inside the attic. Does their neighbor's old house have a secret? Join the Boxcar Children in their graphic novel adventure as they find out the truth!
The Haunted Cabin Mystery
Henry, Jesse, Violet, and Benny
...The first twelve mysteries in the celebrated series about four orphaned siblings who will do anything to stick together.
The Alden children—Henry, Jessie, Violet, and Benny—are on their own. Brave and resourceful, they find a rusty, abandoned railroad boxcar in the woods, make it their home, and start a life of adventure.
Since its debut, the Boxcar Children Mysteries has been one of the most beloved and popular children's