Monsters

Monster Name...Ninja

What it does....crawls around the city and goes into buildings at night when nobody is there except ghosts.

How it lives...if feeds on ghosts at night.  That's why we don't see any ghosts at night.

Where it lives...it sleeps in a big cave under a mountain far away from the city. At night it gets to the city by underground tunnels that have been there for millions of years.  His ancestors made them.

What it likes to do in its spare time...jump around and test out his NINJA skills on a dummy.