The split page format divides the figures at the neck and waist, so that zombie heads, torsos and legs can be chopped and changed at will. For example, flip:

the top and you have a ghoul with his eye hanging out
the middle to reveal its skeleton body and bloody stomach
the bottom to find its decomposing lower half revealing mechanical legs

Every time you turn a page a new story is revealed as the text is completely interchangeable.

Illustrated by: David Hartman