A Wrath of Sparrows - The London Charismatics, #2.5

When an old enemy resurfaces, Lily is forced to choose between friendship and fate in this special London Charismatics novella. In the wake of a devastating loss, Lily is about to receive an unwelcome visit from Jack Cannon, the uncrowned Lord of Limehouse. Sam's former boss is dangerously close to discovering the occult truth about the denizens of The Refuge, information he will ruthlessly exploit.
Sam, obsessed with vengeance, is poised to walk straight into Cannon's trap. Only Lily knows what it will cost him. As war blackens the skies of Europe and newspapers grow with the lists of the dead, Lily takes to the gritty streets of the East End in a fight that will put all her skills to the ultimate test. To stop Sam from making a terrible mistake, Lily will have to betray him-and embrace a dark and terrifying truth about the nature of her charismatic power.
Return to a gothic and mysterious Edwardian England with this thrilling London Charismatics novella set between the events of The Shadow of Water and Bridge of Ash.