The Apollonian Case Files Series by Mark A. Latham

London, 1890. Captain John Hardwick, an embittered army veteran and opium addict, is released from captivity in Burma and returns home, only to be recruited by a mysterious gentlemen’s club to combat a supernatural threat to the British Empire.This is the tale of a secret war between parallel universes, between reality and the supernatural; a war waged relentlessly by an elite group of agents; unsung heroes, whose efforts can never be acknowledged, but by whose sacrifice we are all kept safe.

In an alternate reality, the world is in peril. Young Apollo Lycea agent Lillian Hardwick, and her Majestic partner Sir Arthur Furnival, are sent to expose a plot to seize power of the Empire. They must overcome supernatural foes and unlock the secret of the Iscariot Sanction to discover a danger unlike anything they have faced before; a threat that will leave them—and the Empire—changed forever.