A Possibility

"I asked you to stay overnight so I have a friend to talk to, Vin! After I give you a lot of food, it's good you want to go to sleep!" Gil grumbled, disapproving. Gil kept shaking his best friend's body to keep him from sleeping. After all, it's still 8 o'clock.

"Your fat will pile up, if you go to sleep right after dinner, Vin! Wake up, pal!" Gil shouted back.

Vin took a shaky breath and was forced to sit up.

"Then what do you want me to do, eh? Pillow wars like girls do when they sleep over, huh? That's disgusting, Gil!" Vin complained.

"Play some more games, come on!"

"I don't want to. I've died hundreds of thousands of times today." Vin replied, lazy. He lay back down. But, don't close your eyes.

"Then just stories?"

"It's lazy, you'll be hungry again if you talk a lot," said Vin, lazy.

"Why are you so insensitive, Vin?! I'm telling you to stay overnight to find out, what kind of ghost has been terrorizing me all this time. Why are you confused about going to bed quickly, huh?!" Gil spoke, loudly. He continued to push Vin's body off the soft bed.

"Okay, okay! I'll check all the strange places, like you said earlier," said Vin. After that, he crouched down and looked under the bed. But, there was no one there. "See! There's nothing under your bed, Gil. You must be too paranoid. So imagining weird things."

"No, Vin! I was conscious yesterday. You see, after receiving a phone call from papa, I lay down. Subconsciously bumped the comic that was next to me. When I picked up the comic on the floor, I saw a pair of red eyes that were on the floor. under my bed. This is serious, Vin!"

While saying that, Gil was practicing what happened last night.

Vin checked back under the bed.

"In fact, there's nothing here, Gil. It could be that you're just tired from watching horror films. So, you can imagine the ghosts in the movies," said Vin, predicting.

"I swear, no, Vin! Yesterday I didn't watch any horror movies. After school in the afternoon, I played a little game on the computer. Then, went to sleep," explained Gil. It reminded him of what happened last night.

Vin let out a shaky breath. He got up and walked around Gil's room. Vin approached the glass window and pulled the curtains back.

"It sounded like someone was knocking there yesterday, Vin." Gil explained again.

Vin looked underground through the glass window. Behind the window, there is no balcony. There is only a mango tree in the yard. How could someone knock, if not up the stairs. Or maybe fly. However, the latter possibility is highly unlikely.