Oh No, Not Ghosts!  by Richard Michelson, illustrated by Adam McCauley. 

This is one of those books that I had to sneak out of the house to get it back to the library.  My sons absolutely loved it.  It is the perfect Halloween read-aloud with a myriad of creepy creatures.  A brother and sister who are being quiet to let their father sleep hear a wailing sound.  The boy tries to reassure his sister that it is the wind, not ghosts, but all she hears is ghosts and cries, “Oh no, not ghosts!”  As he tries to reassure her, he continues to name other creatures she shouldn’t fear and the pattern continues.

The pictures are creepy but cartoony, and each monster is revealed to be imaginary in the illustrations.  It is a great book to read aloud, because of the little girl’s reactions.  Just play those up in a different voice or the book can be confusing to listen to.  What fun!  A perfect book to give kids a few safe shivers.