Bonnie Ramthun lives in Erie, Colorado with her husband and children. Her novels for adults include Ground Zero, a thriller published by G.P. Putnam, Earthquake Games, a 2000 Colorado Book of the Year nominee, and The Thirteenth Skull. The White Gates, her middle grade mystery published by Random House in 2008, is a Junior Library Guild Premiere selection and was a finalist for the Missouri Truman Award. She is a former chapter president of Mystery Writers of America, a member of Rocky Mountain Fiction Writers, and former war gamer for the Department of Defense.