Charlie ran up to one of the windows and peered inside. It looked like it was some sort of book store, as there were shelves full of books and magazines. But the store was empty. Just like the rest of the city, everyone was gone.
"Where did that noise come from?" he asked himself.
As soon as he said it, he watched as one of the bookshelves inside the store fell over, sending books and magazines flying across the room.
The crash was so loud that Charlie actually jumped. He peered in through the window again to get a better look. There wasn't anyone in there. How did the bookshelf ...
Then, suddenly, he saw movement at the back of the room. Through the window he couldn't tell if it was a man or a woman, but it definitely had a humanoid figure.
Charlie walked to the store entrance and opened the door and then went inside. Apparently it was left unlocked.