The Treehouse Gang from The Secret House Adventure is once again knee-deep in a 100-year-old puzzle, this time in their old schoolhouse. The school is getting ready for a Halloween party, and little do they know how real it is about to get! Join the fun and games with Penny, Mac, Toad, and Jeannie again as they solve this latest mystery.
M.L. Adams is a grandmother who loves to see children discover the love of reading. She wrote the Secret House Adventure, Belloween, the Treehouse Gang, and Harriet while babysitting her first great-grandchild as a baby for relaxation. She lives in Western Oregon with her husband and German Shepherd.