The alien in apartment 4-B.

The minute I came abiding-place from school my brother, Manny, ran toward me "I heard it again! I heard it again!" he shrieked.
"You heard what?"
"Footsteps! Doors opening and closing! There's someone upstairs in apartment 4-B"
Manny was at it again. "There's no single in apartment 4-B," I said. "The Morgans are upon vacation."
"Exactly!" Manny cried. "So who's walking around above us? A burglar? A spy? Maybe it's a space alien!"
I turned my eyes. Ever since last weekend when we saw the movie