Monkeewrench Series (1-6) by P. J. Tracy (epub, mobi)

Off the Grid - Book 6 of "Monkeewrench"
On a sailboat ten miles off the Florida coast, Grace MacBride, partner in Monkeewrench Software, thwarts an assassination attempt on retired FBI agent John Smith. A few hours later, in Minneapolis, a fifteen-year-old girl is discovered in a vacant lot, her throat slashed. Later that day, two young men are found in their home a few blocks away, killed execution-style. The next morning, the dead bodies of three more men turn up, savagely murdered in the same neighborhood.

As Minneapolis homicide detectives Leo Magozzi and Gino Rolseth struggle to link the three crimes, they learn that there have been similar murders in other cities around the United States. Piece by piece, evidence accumulates, pointing to a suspect that shocks them to the core, uncovering a motive that puts the entire Midwest on high alert and Monkeewrench in the direct line of fire. Before it's all over, Grace and her partners, Annie, Roadrunner, and Harley Davidson, find themselves in the middle of a shocking collision of violence on a remote northern Minnesota reservation, fighting for their lives.

Shoot to Thrill - Book 5 of "Monkeewrench"
The Monkeewrench crew returns in a stunning new thriller. 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 power seats with more positions than the Kama Sutra. 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 one another and posting it on YouTube. And before Magozzi and Rolseth 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, after making a fortune on games, are now helping the cops with anticrime software-have been recruited by the FBI to investigate a series of murder videos posted on the Web. It's not long before Magozzi, Rolseth, and Monkeewrench discover the frightening link between the unlucky bride and the latest, most horrific use of the Internet to date. 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.

Snow Blind - Book 4 of "Monkeewrench"
Nothing's bleaker than Minneapolis during the winter, the season that, to some longtime residents, lasts eleven months of the year. So what better way to bring a little cheer to the good people of the city than by sponsoring an old-fashioned snowman-building contest? In a matter of hours, a local park is filled with the innocent laughter of children and their frosty creations. But things take an awful turn when the dead bodiesof Minneapolis police officers are discovered inside two of the snowmen- sending the MPD and Detectives Magozzi and Rolseth on high alert. The nextday, Iris Rikker, the newly minted sheriff of rural Dundas County, comes across another dead cop. Fearing that Rikker's inexperience will hamper the investigation, Magozzi and Rolseth head north-in a blizzard-to hunt for clues. As Grace MacBride and her crack computer jocks at Monkeewrench combcyber-murder websites for connections, a terrifying link emerges, connecting the dead cops, Magozzi and Rolseth, and Monkeewrench-a link that must be broken, before it's too late.

Dead Run - Book 3 of "Monkeewrench"
Computer game company founders Grace MacBride and Annie Belinsky—along with Wisconsin deputy Sharon Mueller—are en route to Green Bay, following reports of a serial killer, when their car breaks down deep in the northern woods. A short walk through the forest leads them to the eerily quiet town of Four Corners, where they find severed phone lines and a complete absence of any life. But the quiet is deceptive. Before they know it, they witness a horrifying double murder—and discover that this is only the beginning of a race to save their own lives…and countless others.

Live Bait - Book 2 of "Monkeewrench"
Minneapolis detectives Leo Magozzi and Gino Rolseth are bored - ever since they solved the Monkeewrench case, the Twin Cities have been in a murder-free dry spell, as people no longer seem interested in killing one another. But with two brutal homicides taking place in one awful night, the crime drought ends - not with a trickle, but with an eventual torrent. Who would kill Morey Gilbert, a man without an enemy, a man who might as well have been a saint? His tiny, cranky little wife, Lily, is no help, and may even be a suspect; his estranged son, Jack, an infamous ambulance-chasing lawyer, has his own enemies; and his son-in-law, former cop Marty Pullman, is so depressed over his wife's death a year ago that he's ready to kill himself, but not Morey. The number of victims - all elderly - grows, and the city is fearful once again." The detectives' investigation threatens to uncover a series of horrendous secrets, some buried within the heart of the police department itself, blurring the lines between heroes and villains. Grace MacBride's cold-case-solving software may find the missing link - but at a terrible price.

Want to Play? - Book 1 of "Monkeewrench"
In this electrifying debut, the slaying of an old couple in small town America looks like one-off act of brutal retribution. But at the same time, in Minneapolis, teams of detectives scramble to stop a sickeningly inventive serial killer striking again in a city paralysed by fear. When the two separate investigations converge on an isolated catholic boarding school, decades old secrets begin to fall away. It seems an old killer has resurfaced. Yet still the killer's real identity remains dangerously out of reach ...