Art restorer Ethan Clarke accepts a lucrative private commission at Ashford Mansion expecting dust, varnish, and difficult clients. What he finds is a house full of watchful portraits, locked rooms, old warnings, and a family determined to keep its history untouched. The first painting changes everything. Beneath layers of careful overpaint, Ethan uncovers a hidden figure and a strange symbol that should never have been there. His discovery draws him toward Julian Ashford, the sharp-edged heir who knows the mansion is dangerous but has spent years trying to outrun its influence. Julian does not trust his family. Ethan does not trust the house. But as their investigation reveals sealed rooms, buried records, and the shadow of a powerful secret circle, suspicion turns into partnership and partnership into something far harder to resist. Someone at Ashford Mansion has protected the truth for more than fifty years. Now Ethan and Julian are threatening to expose it. And the closer they come to restoring what was erased, the more dangerous the past becomes. The Restoration is a standalone MM romantic thriller blending gothic atmosphere, cold-case mystery, family secrets, and slow-burn romantic suspense.