619--Down to the Grave. 620--The Fatal Javelin. 621--The Ghost of Nick Carter. 622--A Strange Coincidence. 623--Pauline--A Mystery. 624--A Woman of Plots. 625--A Millionaire Swindler. 626--The Money Schemers. 627--On the Trail of the Moon. 628--The House of Mystery. 629--The Disappearance of Monsieur Gereaux. 630--An Heiress to Millions. 631--The Man in the Biograph. 632--The Time-lock Puzzle. 633--The Moving Picture Mystery. 634--The Tiger-tamer. 635--A Strange Bargain. 636--The Haunted Circus. 637--The Secret of a Private Room. 638--A Mental Mystery. 639--The Sealed Envelope. 640--The Message in Blue. 641--A Dream of Empire. 642--The Detective’s Disappearance. 643--The Midnight Marauders. 644--The Child of the Jungle. 645--Nick Carter’s Satanic Enemy. 646--Three Times Stolen. 647--The Great Diamond Syndicate. 648--The House of the Yellow Door. 649--The Triangle Clue. 650--The Hollingsworth Puzzle. 651--The Affair of the Missing Bonds. 652--The Green Box Clue. 653--The Taxi-cab Mystery. 654--The Mystery of a Hotel Room. 655--The Tragedy of the Well. 656--The Black Hand. 657--The Black Hand Nemesis. 658--A Masterly Trick. 659--A Dangerous Man. 660--Castor, the Poisoner. 661--The Castor Riddle. 662--A Tragedy of the Bowery. 663--Four Scraps of Paper. 664--The Secret of the Mine. 665--The Dead Man in the Car. 666--Nick Carter’s Master Struggle. 667--The Air-shaft Spectre. 668--The Broken Latch. 669--Nick Carter’s Sudden Peril. 670--The Man with the Missing Thumb. 671--Feltman, the “Fence.” 672--A Night with Nick Carter. 673--In the Nick of Time. 674--The Dictator’s Treasure. 675--Pieces of Eight. 676--Behind the Mask. 677--The Green Patch. 678--The Drab Thread. 679--The Live-wire Clue. 680--The Vampires of the Tenement. 681--The Policy King Baffled. 682--The Madman’s Gig. 683--A Life at Stake. 684--Trailing a Secret Thread. 685--The Crimson Flash. 686--A Puzzle of Identities. 687--The Westervelt Option. 688--The Vanishing Heiress. 689--The Birth of a Mystery. 690--A Clue from the Past. 691--The Red Triangle. 692--Doctor Quartz Again. 693--The Famous Case of Doctor Quartz. 694--The Chemical Clue. 695--The Prison Cipher. 696--A Pupil of Doctor Quartz. 697--The Midnight Visitor. 698--The Master Crook’s Match. 699--The Man Who Vanished. 700--The Garnet Gauntlet. 701--The Silver Hair Mystery. 702--The Cloak of Guilt. 703--A Battle for a Million. 704--Written in Red. 705--The Collodion Stain. 707--Rogues of the Air. 709--The Bolt from the Blue. 710--The Stockbridge Affair. 711--A Secret from the Past. 712--Playing the Last Hand. 713--A Slick Article. 714--The Taxicab Riddle. 715--The Knife Thrower. 716--The Ghost of Bare-faced Jimmy. 717--The Master Rogue’s Alibi. 718--The Diplomatic Spy. 719--The Dead Letter. 720--The Allerton Millions. 721--A Play for Place. 722--The House of Whispers. 723--The Blue Room Mystery. 727--The Great Pool Room Syndicate. 728--The Mummy’s Head. 729--The Statue Clue. 730--The Torn Card. 731--Under Desperation’s Spur.