Dark Angel

First, Investigator,’ now ‘Dark Angel.’ A stunning new series from John Sandford.
This time we join the tough-as-nails adopted daughter of Lucas Davenport as she takes an undercover assignment that puts her in the crosshairs of a dangerous group of hackers.
Letty Davenport’s days working a desk job are behind her. Her previous action at a gunfight in Texas—and her incredible skills with firearms—draw the attention of several branches of the US government, and make her a perfect fit for more dangerous work. The Department of Homeland Security and the National Security Agency have tasked her with infiltrating a hacker group, known only as Ordinary People, which is intent on wreaking havoc. Letty and her reluctant partner from NSA pose as free-spirited programmers for hire and embark on a cross country road trip to the group’s California headquarters.
While the two work to make inroads with Ordinary People and uncover their plans, they begin to suspect that the hackers are not their only enemy. Someone within their own circle may have betrayed them with ulterior motives that place their mission—and their lives—in grave danger.