Janitor Finds Gym Floor Filled With Umbrellas, Then Reads the Note Left for Him

The note

Frank hesitated, fingers hovering before he finally picked up the envelope. There was no handwriting, no date, nothing to explain where it came from.

On the front was a faint circle with four intersecting lines, like an old compass. Breaking the fragile wax seal, he unfolded the paper inside. The words written in dark ink were simple, chilling.