White Night : The Dresden Files, Book Nine

Meet Harry Dresden, Chicago's first (and only) Wizard P.I.Turns out the 'everyday' world is full of strange and magical things - and most of them don't play well with humans.That's where Harry comes in. A series of apparent suicides rings alarm bells with the police, and Harry is hired.At the first crime scene he hits pay dirt, discovering an unmistakable magical taint.There's also a message especially for him, and it ain't pretty.The 'killings' will continue if Harry can't halt his tormentor, but the evidence implicates his half-brother, which just doesn't add up.Unfortunately Harry's digging around attracts some powerful vampires with a stake in the result.Soon, whichever way he turns, Harry will find himself outnumbered, outclassed and dangerously susceptible to temptation. And if he screws up, his friends will die. Magic - it can get a guy killed.