Wolves
The wolves that were around the farm were no strangers to Jesse, but they were to Nick. Sometimes when Nick was outside working alone, he would see some of them running around the edge of the tree line and would panic. Jesse would always tell him not to worry, they never entered the property before.
Nick felt better knowing this, but still, the wolves would roam around from time to time and it would make him feel uneasy. It wasn’t until both Nick and Jesse had to leave the farm for a few hours to get some supplies, did something totally unexpected happen to them that same day.