Is There a Monster in the House? is a 1995 Sesame Street "Lift-and-Eeeek!" book. In the book, Grover explores a haunted house, frightened by the bumps and squeaks that he hears around every corner. Fortunately, the source of the noises turn out not to be scary after all -- they're just monsters! At the end of the book, Grover and the monsters are "one happy family", dancing in the parlor.