As the night encroached, Matias's drowsiness grew with it. Soon it would be totally dark, and his body was now one with the mattress. Despite all this, the one thing that succeeded in keeping him somewhat awake was his unfamiliarity with the upper level, let alone this house. He started to ponder whether or not he locked his front door before he left it alone like that.

The loud thunk on the ceiling didn't help.

He was stirred from his REM by the repetitive noises from above. They stopped after a few seconds, but it failed to ease him. Now he was stuck staring at the ceiling, almost expecting something to burst through and kill him... but nothing of that sort happened.

Just some clicking afterwards.