In the 1920s a man known only as Mr. Herrick made a name for himself as a brilliant private investigator. He did work for rich and powerful clients, and used the money he made to found his own detective agency in downtown Manhattan. Even during the Great Depression, the Herrick Agency prospered. It would not refuse a case on any grounds. The agency was legendary for its discretion and would reveal nothing about its investigations to anyone but its clients. In addition to working with sensitive matters of state, following adulterers, and investigating celebrity murders, the agency was called in on a number of bizarred cases. Over the years, they investigated aliens, Nazi super-science, time travel, the occult, and much more. Eventually, the Herrick Agency's reputation for investigating the strange supplanted its reputation for discretion, leading to a steadily-increasing involvement in the paranormal.