It became painfully apparent to the Evans family that Larry, their cat, had been staring at the same spot on the wall for hours. Toys and treats consistently failed to distract him, despite their best efforts.
Their vet couldn't find anything wrong with her eyes or ears when they took her to the vet out of concern. Larry's family became frustrated and worried as he continued to stare at the wall for days on end.
There seemed to be something far more nefarious at work.