Mischief Forerunner

It's Halloween! It's Halloween!
The moon is full and bright
And we shall see what can't be seen
On any other night.
Skeletons and ghosts and ghouls,
Grinning goblins fighting duels
Werewolves rising from their tombs,
Witches on their magic brooms
In masks and gown we haunt the street
And knock on doors for trick or treat.
—Jack Prelutsky