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The league of twelve
Phil, the boy fireman, or, Through flames to victory
100 feet above the housetops, or, The mystery of the old church steeple
Lost in the great basin, or, The wonderful underground city
The vampire's prey, or, Nick Carter's blow at policy
The child of the jungle, or, Nick Carter's ingenious ruse
The black flag of piracy, or, Nick Carter's daring venture
The detective road-agent
Spotter Fritz, or, The store-detective's decoy
Buck Hawk, detective, or, The messenger boy's fortune
Denver Doll as detective, or, Little Bill's bold risk
Sierra Sam's sentence, or, Little luck at Rough Ranch
Sierra Sam's double, or, The three female detectives
Sierra Sam, the detective
The frontier detective, or, Sierra Sam's scheme
Detective Josh Grim, or, The young gladiator's game
The ventriloquist detective
Tony Fox, the ferret, or, Boss Bob's boss job
Boss Bob, the king of bootblacks, or, The pawnbrokers plot
Bonanza Bill, the man tracker, or, The secret twelve
Watch-eye, the shadow, or, Arabs and angels of a great city
Tried for his life, or, The chain of guilt