I spent the rest of the day trying to convince myself to throw everything away.
Instead, the next morning, I drove to the location.
The coordinates led me to the edge of a forest about an hour from my town.
There were no buildings, no trails, nothing except trees.
I followed the GPS until it stopped updating.
For a few minutes I just walked in circles.
Then I noticed a patch of leaves that looked different from the surrounding ground.
I moved them aside with my foot.
Underneath was a heavy metal hatch.
It had a keyhole.