Relentless(2021)

You can find the novel at retailers like Amazon or through the Gray Man Wiki . Other Topics Named "Relentless" Relentless (Topic Discussion) - Tabletop Games Blog

Fontana spent 11 years documenting the search, which led her to uncover a web of family secrets, rumors of police corruption, and potential ties to organized crime. Episode Breakdown: Relentless(2021)

Reviewers describe it as a fast-paced, action-packed, and clever spy thriller. You can find the novel at retailers like