- 1I — Across the Threshold
- 2II — The Crime
- 3III — Into the Underworld
- 4IV — Alias the Rat
- 5V — The Second-Hand Dealer
- 6VI — A Midnight Visitor
- 7VII — Whispering Shadows
- 8VIII — A Leash Is Slipped
- 9IX — Behind the Door
- 10X — The Pieces of a Puzzle
- 11XI — The Back Room at Jerry’s
- 12XII — A Clue
- 13XIII — The Cipher Message
- 14XIV — The Robbery
- 15XV — The Alibi
- 16XVI — Twenty-Four Hours Later
- 17XVII — The Man With the Crutch
- 18XVIII — Mirrored Years
- 19XIX — A Hole in the Wall
- 20XX — The Cat’s-Paw
- 21XXI — Without Mercy
- 22XXII — The Fight
- 23XXIII — The Rendezvous
- 24XXIV — Against Time
- 25XXV — The Old Warehouse
- 26XXVI — The Last Portal
Doors of the Night
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