Create An Oc

i moved into a new house not long ago and i for some reason i have been hearing steps i have an attic but we cant really go up there it is closed or seal or smt like that. n not only steps but like random sounds at first i thought it was just a squirrel or smt like that but then it gets close to the walls and goes back and forth and it is like that all night.

thx in adv (⌒▽⌒)