49 books in series
Die drei Fragezeichen (Original)
Die drei Fragezeichen (Original) is a 49-book series with 49 released primary works first released in 1964 with contributions by Robert Arthur, William Arden, Alfred Hitchcock, Jens Wawrczeck, Nick West, M.V. Carey, Marc Brandel, G.H. Stone, Megan Stine, Henry William Stine, and Peter Lerangis.
| #1 |  The Secret of Terror Castle
| 3.64 | 14 reads | ||
| #2 |  The Mystery of the Whispering Mummy
| 3.29 | 7 reads | ||
| #3 |  The Mystery of the Fiery Eye
| 3 | 1 read | ||
| #4 |  The Mystery of the Screaming Clock
| 3 | 1 read | ||
| #5 |  The Mystery of the Talking Skull
| 3 | 2 reads | ||
| #6 |  The Mystery of the Laughing Shadow
| 3 | 3 reads | ||
| #7 |  The Secret of the Crooked Cat
| 2 | 1 read | ||
| #8 |  Die Drei ??? und der Super-Papagei: 2004
| 4 | 1 read | ||
| #9 |  The Mystery of the Coughing Dragon
| 3 | 4 reads | ||
| #10 |  Myst Vanishing Treasu Ah05 3in
| 3 | 1 read | ||
| #11 |  The Secret of Skeleton Island
| 3 | 1 read | ||
| #12 |  The Mystery of the Nervous Lion
| 3 | 1 read | ||
| #13 |  Misteri Gua Raungan
| 4 | 1 read | ||
| #14 |  Die drei ??? und der grĂ¼ne Geist
| 4.5 | 2 reads | ||
| #15 |  Den syngende slange
| 3.5 | 2 reads | ||
| #16 |  The Mystery of the Shrinking House
| 4 | 1 read | ||
| #17 |  The Mystery of Monster Mountain
| 3.33 | 3 reads | ||
| #18 |  The Secret of Phantom Lake
| 4 | 2 reads | ||
| #19 |  The Secret of the Haunted Mirror
| 3.5 | 5 reads | ||
| #20 |  The Mystery of the Dead Man's Riddle
| 3 | 1 read | ||
| #21 |  The Mystery of the Invisible Dog - M. V. Carey The Mystery of the Invisible Dog - M. V. Carey
| 3 | 1 read | ||
| #22 |  The Mystery of the Flaming Footprints
| 3.25 | 6 reads | ||
| #23 |  The Mystery of the Dancing Devil
| 3 | 2 reads | ||
| #24 |  Misteri Tambang Jebakan Maut Misteri Tambang Jebakan Maut
| 3 | 1 read | ||
| #25 |  The Mystery of the Headless Horse
| 3.5 | 2 reads | ||
| #26 |  Myst Silver Spider Ah08 3i
| 3 | 3 reads | ||
| #27 |  Misteri Kelompok Penyihir Misteri Kelompok Penyihir
| 3 | 1 read | ||
| #28 |  Misteri Kemelut Kembar Misteri Kemelut Kembar
| 3 | 1 read | ||
| #29 |  The Secret of Shark Reef
| 3 | 1 read | ||
| #30 | The Mystery of the Scar-Faced Beggar The Mystery of the Scar-Faced Beggar
| 0 | 0 reads | ||
| #31 |  The Mystery of the Sinister Scarecrow
| 4 | 1 read | ||
| #32 |  The Mystery of the Blazing Cliffs
| 3 | 1 read | ||
| #33 |  ZĂ¡hada purpurovĂ©ho pirĂ¡ta
| 0 | 1 read | ||
| #34 |  The Mystery of the Wandering Cave Man The Mystery of the Wandering Cave Man
| 3 | 1 read | ||
| #35 |  The Mystery of the Missing Mermaid
| 3 | 1 read | ||
| #36 |  The Mystery of the Kidnapped Whale
| 3 | 1 read | ||
| #37 |  Tajemnica goÅ‚Ä™bia o dwĂ³ch pazurach
| 0 | 1 read | ||
| #38 |  The Mystery of the Trail of Terror
| 3 | 1 read | ||
| #39 | Misteri Kaca-kaca Remuk Misteri Kaca-kaca Remuk
| 3 | 1 read | ||
| #42 |  The Mystery of the Creep-Show Crooks
| 3 | 1 read | ||
| #43 |  The Mystery of the Rogues' Reunion
| 4 | 1 read | ||
| #44 | Misteri Karang Bencana Misteri Karang Bencana
| 3 | 1 read | ||
| #45 |  The Mystery of the Cranky Collector
| 3 | 1 read | ||
| #47 | Bisnis Kotor Bisnis Kotor
| 3 | 1 read | ||
| #48 |  Ayam Goreng Beracun Ayam Goreng Beracun
| 3 | 1 read | ||
| #49 | Hot Wheels Hot Wheels
| 0 | 0 reads | ||
| #51 | Misteri Kutukan Film Horor Misteri Kutukan Film Horor
| 3 | 1 read | ||
| #53 |  Die drei ??? Gekaufte Spieler
| 3 | 1 read | ||
| #54 |  Crimebusters 9 - Foul Play
| 0 | 0 reads |