Man installs camera after dog stares at a spot on the wall for days

What’s going on?

Crosby behaved quite normally for the rest of the evening, but when George had to go to the bathroom in the middle of the night, he was surprised to see his dog nailed to the floor again in the same spot. What was wrong with his best friend?

George didn’t notice at first, not fully awake, but Crosby looked very sad. The two had been together for so long that George seemed to be able to sense his dog’s mood: it was as if a very dark cloud hung over his head. And the dog kept staring at that same spot on the wall.

What could be seen there anyway? The answer to this question turned out to be very moving.