Rats or Mice
Was it possible that vermin were living in the roof or the walls? It made sense that they would look for a warm place to nest. The problem was that usually these make a pretty common sound, which wasn’t the case here.

Rats Or Mice
The sheer consistency of the noise also indicated that it would have to be an army of rodents. Although they were skeptical, the family decided that it would be worth checking out, especially as they would need to move if it was the case.
