Grey and Villere Suspense Thriller Books in Order

The Grey and Villere books shift Matt Hilton from lone-wolf thriller mode into partnership territory. At the center are private investigator Tess Grey and Nicolas Po Villere, an ex-con and rough-edged ally whose instincts, charm, and talent for violence make him as useful as he is unpredictable. Together they take on cases that are part investigation, part chase, and part survival exercise.

Tess is the steady force. She asks questions, keeps pushing, and refuses to let obvious answers stand if they do not feel true. Po is the wild card, clever, dangerous, loyal when it counts, and never entirely disconnected from the trouble in his own past. Their chemistry carries the series. They argue, protect each other, and keep moving even when a case goes far beyond what either of them expected.

The books are set around Maine, and the setting does real work. Hilton uses wooded back roads, rocky shorelines, isolated cabins, small towns, and wide stretches of bad weather to make the danger feel close and personal. These are stories where the landscape can trap you just as easily as a gunman can. The cold matters. Distance matters. So does the fact that people can disappear quickly in places like these.

The cases vary, but they all start from human trouble. In Blood Tracks, Tess is hired to find a missing state witness while other people are hunting him for bloodier reasons. Painted Skins turns a missing-person search into something darker and more systemic. Raw Wounds drags Po into a deeply personal nightmare. Later books like Collision Course, Fatal Conflict, and Cold Fire keep widening the series, mixing family secrets, fugitives, plane crashes, extortion, and killers who are always closer than they first appear.

What links the books is the way the violence lands. These are not cozy PI stories. Hilton writes action well, and when Tess and Po get cornered, things get rough fast. But the series is not all blunt force. There is also a strong emotional thread running through it, especially around trust, found family, and the way past damage shapes present choices.

Po's history is one of the real engines of the series. He keeps meeting people, debts, and ghosts from earlier parts of his life, and Tess is often pulled into the fallout. That gives the books continuity beyond the individual cases. Readers are not just following investigations. They are watching a partnership deepen under pressure.

If Joe Hunter is Matt Hilton in lone operative mode, Grey and Villere is Hilton in duo mode, still fast, still violent, but a little warmer and a little more rooted in character. Start with Blood Tracks if you want to watch the relationship form from the beginning, then stay for the cases, the atmosphere, and the satisfying sense that Tess and Po are always one bad decision away from another excellent mess.