My rescue dog only stares at the basement door at night Part 2

I have an old house, unfinished basement, nothing creepy about it—or so I thought. But it kept happening.

Every single night, without fail, he'd plant himself in front of that door and stare.

Not barking, not whining, just dead silent staring. Sometimes for hours.

I'd call him back to bed, and he'd come reluctantly, but the second I fell asleep,

he'd be right back at it. During the day? Totally normal dog. Fetch in the yard,

cuddles on the couch, zero issues. I started joking to my friends that he was guarding

against basement monsters. But after a couple weeks, it stopped being

funny. I'd catch him doing it even when I was awake, and his eyes...