This episode is based on Goosebumps book #40.
The DVD of this is one of the few Goosebumps DVDs that doesn't include a opening credits.
One of four episodes to be based on a Goosebumps sequel book without its predecessor having been adapted for TV (two of the others were other Night of the Living Dummy episodes; the third was "Return of the Mummy"). This is also the only two-part episode of the four.