Story Structure — 4 Plot Phases
The Spider Mark Investigation
Dick investigates a nationwide series of murders whose criminal victims bear a spider symbol. He consults Gwen and Steve while working with Chief Anderson's department.
Key Events
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Criminals Summoned — Criminal associates gather after a mysterious leader summons them.
Location: Unspecified meeting place
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A Criminal Objects — One man rejects blindly following the mysterious leader.
Location: Unspecified meeting place
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Spider Mark Murders — Dick investigates murders of criminals marked with a spider symbol. Characters: Dick Tracy
Location: Multiple locations across the country
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Investigation Consultations — Dick consults Gwen and Steve while working with Chief Anderson's department. Characters: Dick Tracy, Gwen Andrews, Steve Lockwood, Chief Clive Anderson
Location: Unspecified
Murder at the Circus
At Brewster's estate, a circus performance for orphaned children is interrupted by Brewster's murder. Dick uses sawdust and the mechanics of the performance to reconstruct the crime and expose the puppeteer.
Key Events
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Brewster Estate Circus — A circus performance for orphaned children takes place at Brewster's estate. Characters: Dick Tracy, Ellery Brewster [Chs. 1, 12]
Location: Ellery Brewster's country estate
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Brewster Murdered — Brewster is murdered during the circus performance. Characters: Dick Tracy, Ellery Brewster [Chs. 1, 12]
Location: Brewster's country estate
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Sawdust Clue — Dick finds sawdust on a suspect matching material at the crime scene. Characters: Dick Tracy
Location: Brewster's country estate
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Performance Trick Exposed — Dick reconstructs the murder using a disguised revolver, puppets, and a recorded voice. Characters: Dick Tracy
Location: Brewster's country estate
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Puppeteer Taken In — Dick exposes the puppeteer, who is taken into custody. Characters: Dick Tracy
Location: Brewster's country estate
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Orphan Stops Crooks — An orphan boy helps stop two crooks and identifies a third man who escapes.
Location: Unspecified
The Missing Attorney
Brewster's sealed envelope connects the investigation to his attorney, Gordon. Gordon disappears after his car is found wrecked, and records are stolen from his office; Dick is given full authority to pursue the case.
Key Events
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Envelope Entrusted — Brewster had entrusted an envelope to his attorney Gordon in case anything happened. Characters: Ellery Brewster [Chs. 1, 12], Gordon Tracy, before [Chs. 1, 12], Dick Tracy
Location: Unspecified
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Gordon Disappears — Gordon's car is found wrecked; he disappears and his office records are stolen. Characters: Gordon Tracy, before [Chs. 1, 12]
Location: Road and Gordon's office
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Authority Granted — Dick receives full authority to pursue the spider-mark case. Characters: Dick Tracy, Chief Clive Anderson
Location: Unspecified
The Bridge Under Threat
Moloch's group transforms Gordon for its plans while Dick investigates threatening notes aimed at the Bay Bridge. Dick traces a typewriter clue, suspects a sound-vibration weapon, and orders loaded trucks onto the bridge; the available account ends as the plan begins.
Key Events
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Gordon Transformed — Moloch's group operates on Gordon, altering his face and behavior for their plans. Characters: Moloch, Gordon Tracy, before [Chs. 1, 12], Gordon Tracy, after
Location: Unspecified operation site
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Bridge Threat Investigated — Dick traces a distinctive replaced letter in bridge threat notes to a repair shop. Characters: Dick Tracy
Location: Bay Bridge and typewriter repair shop
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Sound Weapon Suspected — Dick realizes criminals may have a device capable of destroying the bridge through sound vibrations. Characters: Dick Tracy
Location: Bay Bridge
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Trucks Load Bridge — Dick orders trucks heavily loaded onto the bridge in a desperate effort to protect it. Characters: Dick Tracy
Location: Bay Bridge