Paranormal activity

XVIII."My great grandmother's house "

"900poptr loves their grandparents but hates their house. The house has been in their family for over a century, and something has always felt off about it. The rooms would always feel cold despite the air being off, and visitors often reported feeling like they were being watched.
For about a month, this user and their parents were living in the house. It was during this time that an event happened that terrified them. One night, they woke for no particular reason and went to the bathroom. Suddenly, the door shut and locked behind them. The lock on the door was broken so it shouldn't have been able to lock, let alone close, on its own. Then, the light in the bathroom went out.
They had always been interested in ghost hunting and had a ghost hunting app on their phone. They'd used it in the past but assumed it didn't work. The app was supposed to tell its user whatever the ghost was saying. As they opened the app, they felt something - or someone - breathing down their neck. A few seconds later, the door unlocked and the radar read one word: "Run".
They ran back to hide and hid under the covers until they fell asleep. The next night, they woke again and went into the kitchen for a snack. It was there that they saw a dark figure pick something up from the pantry, turn to them, and then disappear. They tried to return to their room, but the living room door slammed shut as they walked toward it. Again, they felt someone breathing down their neck. They kept pulling at their door until it finally opened. Back in their room, hiding under the covers, they couldn't sleep because they kept hearing footsteps on the porch.
The next night they decided to try sleeping in the den. Their phone was left open to the ghost hunting app when it picked up a signal. It read "Quintin" - their great grandfather's name. That was the last activity the user experienced before they moved out."