Welcome to Darkest London, a world in which supernatural beings exist side-by-side with humans, their actions monitored and kept in check by the SOS (Society for the Suppression of Supernaturals). Currently overseen by Poppy Lane (an Elemental witch) and Augustus (the angel Judgment), the SOS receives support and aid from a number of others, ranging from Poppy’s human husband, her sisters and their spouses to GIM (Ghost in the Machine) Mary Chase with her clockwork heart and her husband, the unique shapeshifter, Jack Talent.
The excellent Forevermore begins with St. John (Sin) Evernight, now serving as a Judgment angel, one who tracks down evil, pursuing a supernatural killer through the London streets, only to have the creature dissipate into small birds, and then running into (literally) Ian Ranulf, King of the Lycans, in his were shape. Being friends, and relatives by marriage, the two men try to make sense of what they just witnessed.
Layla Starling comes back to herself on a ship, waking up naked. Unable to remember even her name right away, Layla soaks in a bath and realizes some blood has washed off. Then the really disturbing aspect of the situation sets in—her desire for blood.