Cronin’s Key is the first book in the series of author N.R. Walker. This book tells the story of two men: One is NYPD detective Alec MacAidan, his life is a series of inexplicable things. Cronin is a vampire who has spent 1000 years waiting for Alec. The fate of his life is related to the Alec police. Both men learn to adapt when they enter another world.
