On a freezing December night, with a full moon hovering in the black skies over New York City, two people are brutally murdered – their prolonged deaths marked by eerie calling cards: moon-faced clocks ticking away the victims’ last minutes on earth. Lincoln Rhyme and his team have only hours to stop the icy-cold, brilliant Watchmaker, whose obsession with time drives him to plan his carnage with the precision of a fine timepiece.

Amelia is not only Lincoln's eyes and ears at crime scenes on the Watchmaker investigation. She's now lead detective on her own homicide – a case that sets into motion clockwork gears of its own.

A case with consequences which will endanger not only many lives as well as Lincoln's and Amelia's future together.

Jeffery Deaver’s lightening-fast new suspense novel introduces his most mesmerising and terrifying villain yet, and proves once again that he is the master of the contemporary thriller.