It begins, as so many of these
stories do, with a knock at the door.
A young couple discovers a
cardboard
baby on their stoop. They grow to love the child, who is completely
flat, as their own. Then someone or
something
takes away the baby to a FlatWorld, a planar landscape populated by
characters whimsical, sinister, and flat as pancakes. The couple, both
ordinary and round, must enter this two-dimensional world to get their
baby back. Can they rescue their adopted child
and escape from a parallel universe in which there is
up-and-down
and side-to-side, but no way out?
(more)