Chris Grabenstein

Chris Grabenstein is an American author whose first novel came out in 2005. He writes for both adults and children, and his books for younger readers are often written with frequent collaborator James Patterson. His books include the Mr. Lemoncello's Library series, in which a boy who loves games and his classmates are locked inside a puzzle-filled library overnight. He has also written The Crossroads, a supernatural horror novel, and The Island of Dr. Libris, a mystery.