Firebreak (Unabridged‪)‬

For Parker, the amoral super-thief extraordinaire, it will be an excellent haul. The fact that the lead came from his old partners in crime, Elkins and Wiss, is no impediment to his joining their team and going for the score. The goods are a bunch of paintings by Old Masters kept out of sight in a dot-com billionaire's Montana lodge for his personal delight. The billionaire, Paxton Marino, has plenty of built-in high-tech security, so they've got their own systems geek, Lloyd, to defeat the electronic safeguards.
Naturally, in a Parker novel, no heist goes off without a hitch, and a federal agent investigating Marino's original art thefts gets involved, but that's the least of Parker's problems. As usual, betrayal and revenge are the order of the day.