Inspector Carver

IV

Chief detective on the Polish siege case; has supper with Tab after the incident.

V

Lunches with Tab; identifies Walters as Walter Felling, a known thief; accompanies Tab to Mayfield; investigates the vault and picks up old gloves.

VI

Leads the investigation, finds the blood-stained key, discovers Walters' key-making tools, and identifies Wellington Brown as a suspect.

VII

Discusses murder theories with Tab, examines the bent pin, and continues the search for Walters and Brown.

IX

Leads the investigation, discovers the stolen jewels and the telegram, and expresses perplexity over Trasmere's possible role as a receiver.

Chapter X

Discovers a bloodied heel print in the vault and explains the impossibility of a duplicate key; summarizes the baffling case.

XIII

Leads the investigation into the break-in; discovers the secret brick box; confronts Mr. Stott about withholding information.

XV

Referenced as having a busy week and later referring to the incident as 'The Second Activity.'

XVI

Investigates the burglary and theorizes the burglar is Trasmere's murderer.

XVII

Investigates the man in black, reveals his knowledge of Ursula's secret role as Trasmere's secretary and the Mayfield visit, and sets up the trap that leads to Yeh Ling's discovery.

XVIII

Interrogates Yeh Ling about the murder and the agreement; investigates the scene of the attack and the car tracks.

XIX

Arrests Walters at the docks and discusses the case with Tab; believes Walters is not the murderer but has useful information.

XX

Investigates Tab's attack and discusses the implications of Walters' statement and Ursula Ardfern's secret.

Mr. Stott's Vigil

Mentioned as the thickheaded policeman Mr. Stott complains about; Mr. Stott eventually rushes to him with news of Wellington Brown.

XXIII

Investigating the Mayfield crime scene; notes the pins are different and that the murderer wore gloves; keeps an officer on duty.

XXV

Mentioned as being visited by Rex and as being rattled but mysterious about the case.

XXVI

Carver is mentioned as having lost hope in the case, though Tab finds him deceptive.

XXVIII

Visits Yeh Ling to demand documents; interviews a new witness and Walters; believes the Trasmere case is nearing solution.

XXIX

Meets Tab at the theatre, reveals he fears being watched by the murderer, and stays overnight at Tab's flat.

The Night Attack

Sustains a slight wound from the attack, examines the bullet holes and knife, and warns Tab and Rex.

XXXI

Rex accuses Carver of being deeply involved in the murder, though Tab is shocked by the claim.

XXXII

Mentioned as the detective who suspected Rex Lander's involvement by checking for a clock in his hotel room.

XXXIII

Tab references Carver's knowledge of Rex's crimes and his intention to see Rex hanged.

XXXIV

Leads the raid on Rex Lander's hotel, discovers the Chinese revolver and the ring receipt, and rushes to Mayfield after learning of the fire.

XXXV

Arrives after the fire, expressing gratitude to Mr. Stott for the rescue.

XXXVI

Leads the effort to warn Ursula, deduces the wire has been cut, and organizes transport.

XXXVIII

Investigates the crime scene, explains Lander's murder plan, and deduces the forgery of Trasmere's will.