My strange experiences

6

(This was when me and my sister first moved to our new house)
I was trying to go to bed as usual at 12am When all of the sudden my sister burst in my room telling me there are things falling in the walls so I go to check it out and stand in her room by the door for about 20-25 minutes and start to leave but my sister begged my to stay and listen but I left and got only to the bathroom which is in between our room when I heard something fall and I rush in her room to see what it was and I wait to listen to the thing but this time it was like a ocean of things started falling in the wall and then we just ended up going to sleep after that.
(Like 3 years ago)