18 - Sign at Six by Stewart Edward White

What began as a mere annoyance - random electrical glitches in the Atlas building that seemed to resolve themselves, soon escalated into a series of bizarre and inexplicable occurrences. It falls on the shoulders of the brilliant scientist, Percy Darrow, to unravel the mystery behind these strange events. As the world around him becomes increasingly peculiar and perilous, Percy must discover not just the who and the how, but potentially the why, behind these enigmatic happenings.