On the way to the library, Cassie finds a mysterious Halloween store down an alley and goes inside. The store owner (Tobin Bell) sells her a little book called The Evil Thing which contains a warning on the front page: "DO NOT READ ALOUD." That night, Cassie ignors the warning in the book and reads it to Max:
The Evil Thing is a gruesome beast.
On living flesh it loves to feast.
It's a two-headed thing whom you don't wish to greet.
One head sucks your blood, one head chews your meat.
It carries its babies in slimy eggs on its back.
The babies are hungry when they hatch for a snack.
So the Evil Thing traps some poor victim alive,
For the babies to eat when their birthdays arrive.
But don't worry, don't cry, please don't have a fit.
The Evil Thing is not real...
Unless you think about it.