The Monkeewrench crew returns in a remarkable, heart-stopping new thriller.

It begins with a floater.

It's eighty-five degrees in the shade when Minneapolis detectives Leo Magozzi and Gino Rolseth pull into the MPD parking garage. They're driving a tricked-out Caddy, repossessed from a low-level drug dealer. It's not a Beemer or a Mercedes, but it's got GPS, air conditioning, and electric seats with more positions than the Kama Sutra.

But things are heating up inside the station house, too. The bomb squad's off to investigate another suspicious package at the mall, and kids are beating the crap out of each other and posting it on YouTube. And before Leo and Gino can wish for a straight-on homicide, the call comes in: a floater.

Soon they're humping it along a derelict stretch of the Mississippi River, beyond the green places where families picnic and admire the views. They can see her-she looks like a bride in her white formal gown-face down, dead in the water. And so it begins.

Across town, Grace McBride's Monkeewrench crew-the computer geeks who made a fortune on games, now helping the cops with anticrime software-has been recruited by the FBI to investigate a series of murder videos posted on the Web. It's not long before Rolseth, Magozzi, and Monkeewrench discover the frightening link between the unlucky bride and the latest, most horrific use of the Internet yet. Using their skills to scour the Net in search of the perpetrator, the team must race against the clock to stop a killer in his tracks.