A Child's Nightmare

It was a dark night and raining cats and dogs. The wind was howling and lightning lit up the sky. A small child about 6 or 7 sat on his twin sized bed. The child could not fall asleep that night. The grandfather clock down the left hallway struck 11:00. It's already 11:00 and I still cannot sleep, thought the child.
Clank, Clank, Clank. Something or someone was in the hallway.