Some masks hide more than a face. Some hide a truth that refuses to stay buried.When Cassian agrees to wear a simple black mask for one night at his school's Halloween dance, he expects a laugh-not a legend. But the mask fuses to his skin, whispers in a voice that isn't his own, and pulls him into a haunting mystery that twists through locker-lined halls and an abandoned art room known as Room 217.Together with his friends Eden and Jace, Cassian uncovers secrets about identity, courage, and a ghostly reflection that wants to take his place. What begins as a spooky school dare becomes a supernatural thriller about friendship, finding your voice, and the mask we all wear to fit in.The Mask That Didn't Come Off is a chilling coming-of-age story filled with atmosphere and heart. If you love eerie school ghost stories, Halloween mysteries for teens, and clean supernatural suspense, this book belongs on your shelf.