The Mystery of the Grinning Gargoyle (2014)
The Mystery of the Grinning Gargoyle is a 2014 gargoyles book written by Gertrude Chandler Warner and Aimee Lilly.
When the Aldens visit a university campus, they must solve a mystery involving an old library whose stone gargoyles seem to move on their own.
When the Aldens visit a university campus, they must solve a mystery involving an old library whose stone gargoyles seem to move on their own. Book #137