Adder's Smile
Christmas is coming, all should be right with the world. Particularly as, with the death of Todd Gilbert, it seems the reign of the Night Killer has come to an end. The city of Milton Keynes can go back to normal, even if Major Crimes are quietly investigating the note found pinned to his clothes during his postmortem that suggests otherwise.
When the fire brigade makes a gruesome discovery on a farm, Nikki and her team start investigating. But, as one death becomes two, the best hope is that the real Night Killer has returned because the alternative explanation is too painful to be true.
With Nikki only able to trust Whip, the classified AI she and her team are testing, can they figure out what’s going on before the unthinkable happens?
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Karen Guyler
Karen Guyler writes gripping thrillers featuring impossible choices, twists you won’t see coming, and unforgettable characters.
Her debut series Dateline Zero was longlisted for the prestigious Crime Writers’ Association Debut Dagger—an award that has launched the careers of many bestselling crime writers.
Karen’s books have been praised by readers for their fast pace, smart plotting, and characters you can’t help but root for—even when they’re making terrible decisions.
When she’s not writing, Karen can be found reading crime fiction (obviously), walking her dogs, and plotting her next twist. She lives in the UK with her family.
DI Nikki Ross
DI Nikki Ross consists of four books. The current recommended reading order for the series is provided below.

