Mr. Ambrose Chitterwick

Sir Charles Wildman

Mr. Ambrose Chitterwick and Sir Charles are colleagues in the Crimes Circle, collaborating on the case.

Miss Dammers

Miss Dammers and Mr. Ambrose Chitterwick are fellow amateur detectives in the Crimes Circle, often discussing the case.

Roger Sheringham

Mr. Ambrose Chitterwick and Roger Sheringham are fellow members of the Crimes Circle, working together on the investigation.

Sir Eustace Pennefather

Mr. Ambrose Chitterwick and Sir Eustace are colleagues in the Crimes Circle, collaborating on the case.

Sir Eustace Pennefather

Mr. Ambrose Chitterwick and Sir Eustace are colleagues in the Crimes Circle, collaborating on the case.

Miss Dammers

Miss Dammers and Mr. Ambrose Chitterwick are fellow amateur detectives in the Crimes Circle, often discussing the case.

Roger Sheringham

Mr. Ambrose Chitterwick and Roger Sheringham are fellow members of the Crimes Circle, working together on the investigation.

Sir Charles Wildman

Mr. Ambrose Chitterwick and Sir Charles are colleagues in the Crimes Circle, collaborating on the case.

Sir Charles Wildman

Mr. Ambrose Chitterwick and Sir Charles are colleagues in the Crimes Circle, collaborating on the case.

Roger Sheringham

Mr. Ambrose Chitterwick and Roger Sheringham are fellow members of the Crimes Circle, working together on the investigation.

Miss Dammers

Miss Dammers and Mr. Ambrose Chitterwick are fellow amateur detectives in the Crimes Circle, often discussing the case.

Sir Eustace Pennefather

Mr. Ambrose Chitterwick and Sir Eustace are colleagues in the Crimes Circle, collaborating on the case.

The Poisoned Chocolates Case

Quietly observes and later solves the case.

I

Nervous member; worries about how to conduct a real investigation.

IV

Drawn last to present, which brightens him. Asks Mr. Bradley how a detective really works and is promised a book.

VI

Asks about motive and later questions Miss Dammers about her disagreement with Sir Charles's theory.

VII

Smiles nervously during the tense exchange, apprehensive of a physical confrontation.

VIII

Appears alarmed and uncertain during the accusations.

Chapter X

Echoes approval and is impressed by Bradley's deductions.

XI

Catches Mr. Bradley's slip about the murderer being a woman, showing attentiveness.

XIV

Raises a point about the bet being the foundation of Roger's case and questions the risk of sending chocolates to Sir Eustace.

XV

In awe of Dammers's detecting; asks clarifying questions about the bet and the anomaly.

XVII

Delivers the final analysis, refutes Miss Dammers's case, and reveals he has solved the murder by compiling and cross-referencing the other members' theories.

XVIII

Delivers the final solution, correcting the group's theories and revealing the criminal's plot.