The Mystery of Colonel Ardenti

Ardenti's claims about a secret Templar plan trigger a police inquiry, an unexplained disappearance, and a chain of suspicions that the characters never conclusively resolve.

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A Manuscript and a Warning

The Colonel's Bait A proposed book Ardenti presents a supposed Templar document and claims it may expose a world-changing secret. He hopes publication will make him safer by attracting witnesses. A skeptical reception Casaubon recognizes familiar conspiracy claims, while Belbo sees a commercial opportunity. The colonel's dramatic account nevertheless leaves enough uncertainty to hold their attention.

The Disappearing Body

A Police Puzzle A strange room De Angelis finds the colonel's room ransacked but no body. Witnesses report a possible killing, two visitors, and a missing briefcase. Contradictory accounts The police suspect fraud, political connections, or murder, but each theory depends on uncertain testimony. Belbo and Casaubon conceal what they know about the manuscript.

A Trail Reopens

The Old Case Resurfaces Renewed attention De Angelis encounters Casaubon while researching synarchy and occult groups. His questions link Ardenti's disappearance to the Picatrix circle and later suspicions. No resolution The novel never establishes exactly what happened to Ardenti. His uncertainty instead becomes a model for how gaps invite increasingly elaborate explanations.

During Casaubon's early publishing work

The day after Ardenti meets the publishers

Years later, after Casaubon returns to Milan