(21 - 40 of 301)
A puzzle of identities, or, Nick Carter solving a strange problem
The Prison Cipher, or, Nick Carter and the mysterious substitute
The Master Crook's Match, or, Nick Carter on his mettle
The bolt from the blue, or, Nick Carter and the dream stone
The Taxicab Riddle, or, Nick Carter's second assistant
The dead letter, or, Nick Carter's postal clue
The Mummy's Head, or, Nick Carter's Egyptian mystery
The Mark of a Circle, or, Nick Carter's seven sworn enemies
The green scarab, or, Nick Carter's beautiful mystery
A shot in the dark, or, Nick Carter's midnight adventure
The Hidden Crime, or, Nick Carter's telephone clew
The Secret Entrance, or, Nick Carter and the child stealers
The cavern mystery, or, Nick Carter's puzzle of the leather bag
The antique vial, or, Nick Carter's curious mystery
The Midnight Message, or, Nick Carter and the mountain mystery
A royal flush, or, Nick Carter's pursuit of a living mystery
Jack Wise's hurry call, or, Nick Carter youngest assistant gets busy
Nick Carter's advertisement, or, A new way to catch a criminal
The Kregoff necklace, or, Nick Carter unearths a secret
Nick Carter and the nihilists, or, The mine under the grand duke's palace