Competition heats up between the twins, but soon the red flags are flying, and it looks like they might have more serious problems on their hands - literally.Stine, R. L. Night of the Living Dummy. Vol. 7 62, Scholastic Inc., 1993. Print."Graveyard Shift" Kevin MacLeod (incompetech.com)Licensed under Creative Commons: By Attribution 3.0 Licensecreativecommons.org/licenses/by/3.0/"