Brown Cover collection (For Sale)

22. The Flickering Tourch Mystery, 1943 (Orange inside cover)
28. The Sign of the Crooked Arrow, 1949 (Brown inside cover)
34. The Hooded Hawk Mystery, 1954 (Orange inside cover)

Blue Cover collection

Gold background are missing books

01. The Tower Treasure, (1,2,3-single book 1959)
02. The House On The Cliff, 1959
03. The Secret Of The Old Mill, 1962
04. The Missing Chums, 1962
05. Hunting For Hidden Gold, 1963
06. The Shore Road Mystery, (NewBlue 1992)
07. The Secret Of The Caves, 1964
08. The Mystery Of Cabin Island, 1966
09. The Great Airport Mystery, 1965

10. What Happened At Midnight, 1967
11. While The Clock Ticked, 1962
12. Footprints Under The Window,
13. The Mark On The Door, 1967
14. The Hidden Harbor Mystery, 1961
15. The Sinister Sign Post,
16. A Figure In Hiding,
17. The Secret Warning, 1966
18. The Twisted Claw,
19. The Disappearing Floor, 1964

20. The Mystery Of The Flying Express,
21. The Clue Of The Broken Blade,
22. The Flickering Torch Mystery,
23. The Melted Coins,
24. The Short Wave Mystery, 1966
25. The Secret Panel,
26. The Phantom Freighter,
27. The Secret Of Skull Mountain,
28. The Sign Of The Crooked Arrow,
29. The Secret Of The Lost Tunnel,

30. The Wailing Siren Mystery,
31. The Secret Of Wildcat Swamp,
32. The Crisscross Shadow,
33. The Yellow Feather Mystery,
34. The Hooded Hawk Mystery,
35. The Clue in the Embers,
36. The Secret Of Pirates' Hill,
37. The Ghost At Skeleton Rock,
38. The Mystery At Devil's Paw,
39. The Mystery Of The Chinese Junk,

40. Mystery Of The Desert Giant,
41. The Clue Of The Screeching Owl, 1962
42. The Viking Symbol Mystery, 1963
43. The Mystery Of The Aztec Warrior, 1964
44. The Haunted Fort,
45. The Mystery Of The Spiral Bridge,
46. The Secret Agent On Flight 101, 1967
47. Mystery Of The Whale Tattoo, 1968
48. The Arctic Patrol Mystery, 1969
49. The Bombay Boomerang,

50. Danger Of Vampire Trail,
51. The Masked Monkey,
52. The Shattered Helmet,
53. The Clue Of The Hissing Serpent, 1974
54. The Mysterious Caravan,
55. The Witchmaster's Key,
56. The Jungle Pyramid,
57. The Firebird Rocket,
58. The Sting Of The Scorpion,
Hardy Boys Detective Handbook

⇑ Ken Holt Mystery Stories, Author Bruce Cambell

02 The Riddle of the Stone Elephant, 1949

⇑ Author James P. Hogan

Don't have
Don't have - didn't like
Collection
01. Inherit The Stars, 1977 (Giants)
02. The Gentle Giants Of Ganymede, 1978 (Giants)
03. Giants' Star, 1981 (Giants)
04. The Genesis Machine, 1978
05. The Two Faces Of Tomorrow, 1979
06. Thrice Upon A Time, 1980
07. Voyage From Yesteryear, 1982
08. Code Of The Life Maker, 1983 (Code)
09. The Proteus Operation, 1985
10. Endgame Enigma, 1987
11. Mind, Machines and Evolution, 1988
12. The Mirror Maze, 1989
13. Entroverse, 1991 (Giants)
14. The Immortality Option, 1995 (Code)
15. Realtime Interrupt, 1995
16. Paths To Otherwhere, 1996
17. Bug Park, 1997
18. Star Child, 1998
19. Rockets, Redheads and Revolution, 1999
20. Cradle Of Saturn, 1999
21. The Legend That Was Earth, 2000
22. Martian Knightlife, 2001,
23. The Anguished Dawn, 2003
24. Catastrophes, Chaos and Convolutions, 2005
25. Echoes Of An Alien Sky, 2005
26. Mission To Minerva, 2005 (Giants)
27. Moon Flower, 2008
28. Migration, 2010

⇑ Ranger's Apprentice, Author John Flanagan

Gold background are missing books

The Early Years

01. The Tournament At Gorlan (2015)
02. The Battle Of Hackham Heath (2016)

Ranger's Apprentice Series

01. The Ruins of Gorlan (2004)
02. The Burning Bridge (2005)
03. The Icebound Land(2005)
04. The Battle For Skandia (or Oakleaf Bearers)(2006)
05. Erak's Ransom (2007)
06. The Sourcerer Of The North (2006)
07. The Siege Of Macindaw (2007)
08. The Kings Of Clonmel (2008)
09. Halt's Peril (2009)
10. The Emperor Of Nihon-Ja (2010)
11. The Lost Stories (2011)
12. A New Beginning (2013)

The Royal Ranger

01. A New Beginning (#12 from the series)(2013)
02. The Red Fox Clan (2018)
03. Dual At Araluen (2019)
04. The Missing Prince (2020)
05. Escape From Falaise (2021)
06. Arazan's Wolves (2022)

⇑ Lemony Snicket

01. A Series of Unfortunate Events: The Bad Beginning, 1999
02. A Series of Unfortunate Events: The Reptile Room, 1999
03. A Series of Unfortunate Events: The Wide Window, 2000
04. A Series of Unfortunate Events: The Miserable Mill
05. A Series of Unfortunate Events: The Austere Academy, 2000
06. A Series of Unfortunate Events: The Ersatz Elevator, 2001
07. A Series of Unfortunate Events: The Vile Village
08. A Series of Unfortunate Events: The Hostile Hospital
09. A Series of Unfortunate Events: The Carnivorous Carnival
10. A Series of Unfortunate Events: The Slippery Slope
11. A Series of Unfortunate Events: The Grim Grotto
12. A Series of Unfortunate Events: The Penultimate Peril
13. A Series of Unfortunate Events: THE END, 2006
14. Lemony Snicket: The Unauthorized Autobiography
15. All The Wrong Questions

⇑ Author H.B. Moore

1. +Out of Jerusalem, Volume 1: Of Goodly Parents
2. +Out of Jerusalem, Volume 2: A Light in the Wilderness
3. +Out of Jerusalem, Volume 3: Towards the Promised Land
4. +Out of Jerusalem, Volume 4: Land of Inheritance
5. +Abinadi
6. +Alma
7. +Alma the Younger
8. +Ammon
9. −Moses Chronicles: Bondage
10. −Moses Chronicles: Deliverance
11. −Moses Chronicles: Exodus
12. +Daughters of Jared
13. +Esther the Queen
14. −Eve
15. −Poetic Justice
16. +Ruth
17. −Breaking Jess
18. +Deborah: Prophetess of God
19. +Mary and Martha
20. +Hanna
21. −Mostly Murder: Till Death
22. −Omar Zagouri: Beneath
23. −OZ: Finding Sheba
24. −OZ: Lost King
25. −OZ: Slave Queen
26. −OZ: The Killing Curse
27. −First Heist