Finn Ryan Books in Order

Finn Ryan is at the center of Christopher Hyde's art-and-history thrillers under the Paul Christopher name. She begins as a young woman with serious knowledge, sharp instincts, and very bad luck around rare objects. That turns out to be a strong combination for this sort of series. Finn does not go looking for world-shaking conspiracies so much as stumble into them, and once she does, she has the nerve to keep going.

The opening novel, Michelangelo's Notebook, gives you the blueprint. Finn, then studying art history in New York, finds evidence tied to a lost Michelangelo notebook, and almost immediately the discovery turns deadly. A murder, stolen sketches, and a trail leading toward Vatican shadows push the book out of academic territory and into full thriller mode. That blend stays with the series. Paintings, manuscripts, tombs, and relics are never just museum pieces here. They are keys that unlock buried crimes and very current danger.

Finn's partners change as the books go on, which helps each novel feel a little different. In the first book she works with the mysterious Michael Valentine. In The Lucifer Gospel she is paired with Virgil Hilts, a pilot and photographer. In later books, especially Rembrandt's Ghost and The Aztec Heresy, Lord Billy Pilgrim becomes an important companion in the chase. The shifting pairings keep the series lively, while Finn remains the one steady presence, the person whose curiosity keeps the whole engine running.

These books love old objects.

What Hyde does especially well here is scale. The stories begin with something concrete, a drawing, a medallion, a painting, a codex, and then expand outward into centuries of religious conflict, wartime secrets, colonial greed, and treasure-hunting obsession. The settings help a lot. New York, Amsterdam, the Sahara, the Caribbean, the Yucatan, and the South Pacific all feel chosen for a reason. Each location brings a new mood, whether that is urban chase thriller, desert mystery, or lost-city adventure.

The tone is lighter on military action than the John Holliday books, but the stakes are still high. These are fast archaeological mysteries with killers, secret societies, forged histories, and the constant sense that knowledge can be worth killing for. Finn is smart without being distant, capable without being invincible, and that makes her a good lead for stories that ask readers to enjoy both the puzzle and the sprint.

You can read each book as its own adventure, but publication order is still the best path because Finn's world grows a little richer each time. Start with Michelangelo's Notebook and expect art, danger, and a lot of history that refuses to stay buried.