If you enjoy games like Assassin's Creed Syndicate or Gloomwood, you might like...
Beasts of London (Method of the Kill #1) and Lady of Brass (Method of the Kill #2) by Jonathan Maloney.
Includes both books in the Method of the Kill series!
Beasts of London (#1)
Bartholomew Bartleby fought to find the man who killed Jack the Ripper—he just never expected him to be worse.
In the dark streets of deepest London, Bartholomew searches for answers. But when the answers find him, he's thrown into a hidden world of the unknown, the unknowable, and the downright monstrous.
Under the tutelage of—or perhaps, kidnapped by—one of the last hunters fighting the secret war between man and monster, Bartholomew investigates the death of a man seemingly dropped from the sky, the latest in a series of murders around the city. One tenuous link connects them all—the legendary Bethlehem Hospital... Bedlam.
As Bartholomew and his mentor immerse themselves in this new mystery, others begin to surround him with their nagging questions; who is the cackling coach driver with silver hair and laughing eyes? Why is the house tended by a giant, walking corpse, who serves sandwiches as delicate as their voice? Why does everyone flinch from his mentor, the man who works beside him?
Just who is Jean Reynard?
Lady of Brass (#2)
In the rotten underbelly of Victorian London, Barty uncovers secrets that should've remained in the murk...
Bartholomew Bartleby continues his journey towards making the unknown known at the side of the dreaded Jean Reynard, the last monster hunter of England. As a part of the mysterious Society of the Hound, he must walk the narrow and bloody line between two very different worlds - and both are a threat to him.
In the midst of learning about this new and frightening reality, he and the other members of the Society are brought face to face with a horror born out of tragedy; a life cut short, brought alive once more, with terrible implications of what it might lead to, a mystery particularly close to the enigmatic figure known as Adam - the giant, walking corpse with a voice of music and a heart of sorrow.
A new life enters their world, innocent and pure and terrible - the mysterious Lady of Brass.
Fans of Sir Arthur Conan Doyle's Sherlock Holmes, Robin Hobb's Farseer Trilogy, and players of Assassin's Creed Syndicate will enjoy sinking their teeth into the fantastically detailed world of Maloney's London and the complex characters he has created.