"The Sign at Six" by Stewart Edward White is a novel likely written in the early 20th century. The book revolves around the main character, Percy Darrow, a young scientist with a past filled with danger, as he navigates a mysterious and seemingly supernatural series of events in New York City. After a peculiar blackout of electricity and sound envelops the city, Darrow finds himself embroiled in a tangled web of intrigue and potential threats that seem connected to a notorious political figure named McCarthy. At the start of the narrative, Percy Darrow is introduced as he interacts with McCarthy, who is agitated over a mysterious message that threatens his position. The opening sets the stage for a significant upheaval in the city, highlighting Darrow's calm demeanor amidst chaos. As the story unfolds, citizens face an eerie silence and electrical failures, hinting at a greater, unseen power at play. This scenario not only breaths tension into the plot but piques Darrow's curiosity, who is determined to uncover the reality behind these unsettling occurrences. The interplay of science, mystery, and human conflict creates a compelling narrative that invites readers to explore the intrigue that "The Sign at Six" promises. (This is an automatically generated summary.)