City of Night is a novel released in 2005 by the best-selling author Dean Koontz and Ed Gorman.

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.

But first Deucalion must destroy a monstrosity not even Victor’s malignant mind could have imagined—an indestructible entity that steps out of humankind’s collective nightmare with one purpose: to replace us.

[1] Also in 2009, the three novels comprising the trilogy were collectively re-designated as being by Dean Koontz, with the second and future editions effectively airbrushing from history Gorman's contribution to the second installment.