Thalia

A witness. Such a simple concept - and yet for Dexter Morgan, a perfectly well-disguised serial killer, the possibility of a witness is terrifying. As an
upstanding blood-spatter analyst for the Miami Police, Dexter has always managed
to keep the darker side of his life out of the spotlight. An expert at finding
truly bad people - murderers who've long escaped justice - and giving them his
own special attention. But now someone has seen him in the act. Dexter is being
followed, manipulated and mimicked, leading him to realise that no one likes to
have a double - especially when his double's goal is to kill him. Like the five
previously bestselling novels in the Dexter series, Jeff Lindsay demonstrates
the witty, macabre originality that has propelled Dexter to international
success.