Frankenstein: Dean Koontz and Ed Gorman

Book II City of Night. They are nearly indestructible. They are stronger, heal faster and think faster than any humans ever created - and they must be destroyed. But not even Victor Helios - once known as Frankenstein - can stop the engineered killers he's set loose on a reign of terror through modern day New Orleans. Now the only hope rests in a one-time monster and his all-too-human partners, Detectives Carson O'Connor and Michael Maddison. Deucalion's centuries-old history began as Victor's first and failed attempt to build the perfect human - and it is fated to end in the ultimate confrontation between a damned creature and his mad creator. https://cosmiccauldronbooks.com.au/p/frankenstein-dead-and-alive/