An imprint of Harlequin Books, the series is comprised of 58 paperback original books published between 1975 and 1977.  Featured titles include early work from Tim Powers (#28, 47) and K.W. Jeter #7, 33).  Collectible also for the cover paintings of Hugo Award winner Kelly Freas.

    0. Seeds of Change, Thomas F. Monteleone (1975)
    1. Renegades of Time, Raymond F. Jones (1975)
    2. Herds, Stephen Goldin (1975)
    3. Crash Landing on Iduna, Arthur Tofte (1975)
    4. Gates of the Universe, Robert Coulson with Gene DeWeese (1975)
    5. Walls Within Walls, Arthur Tofte (1975)
    6. Serving in Time, Gordon Eklund (1975)
    7. Seeklight, K. W. Jeter (1975)
    8. Caravan, Stephen Goldin (1975)
    9. Invasion, Aaron Wolfe (1975)
    10. Falling Toward Forever, Gordon Eklund (1975)
    11. Unto the Last Generation, Juanita Coulson (1975)
    12. The King of Eolim, Raymond F. Jones (1975)
    13. Blake's Progress, R. F. Nelson (1975)
    14. Birthright, Kathleen Sky (1975)
    15. The Star Web, George Zebrowski (1975)
    16. Kane's Odyssey, Jeff Clinton (1976)
    17. The Black Roads, J. L. Hensley (1976)
    18. Legacy, J. F. Bone (1976)
    19. The Unknown Shore, Donald Malcolm (1976)
    20. Space Trap, Juanita Coulson (1976)
    21. A Law for the Stars, John Morressy (1976)
    22. Keeper, Joan Hunter Holly (1976)
    23. Birth of Fire, Jerry Pournelle (1976)
    24. Ruler of the World, J. T. McIntosh (1976)
    25. Scavenger Hunt, Stephen Goldin (1976)
    26. To Renew the Ages, Robert Coulson (1976)
    27. The Horde, Joseph Green (1976)
    28. The Skies Discrowned, Timothy Powers (1976)
    29. The Iron Rain, Donald Malcolm (1976)
    30. The Seeker, David Bischoff with Christopher Lampton (1976)
    31. Galactic Invaders, James R. Berry (1976)
    32. Then Beggars Could Ride, R. F. Nelson
    33. The Dreamfields, K. W. Jeter (1976)
    34. Seas of Ernathe, Jeffrey Carver (1976)
    35. I, Aleppo, Jerry Sohl (1976)
    36. Jeremy Case, Gene DeWeese (1976)
    37. The Meddlers, J. F. Bone (1976)
    38. Ice Prison, Kathleen Sky (1976)
    39. Brandyjack, Augustine Funnell (1976)
    40. Master of the Stars, Robert Hoskins (1976)
    41. Future Sanctuary, Lee Harding (1976)
    42. Cross of Empire, Christopher Lampton (1976)
    43. Spawn, Donald Glut (1976)
    44. But What Of Earth?, Piers Anthony and Robert Coulson (1976)
    45. Finish Line, Stephen Goldin (1976)
    46. Dance of the Apocalypse, Gordon Eklund (1976)
    47. Epitaph in Rust, Timothy Powers (1976)
    48. Rebels of Merka, Augustine Funnell (1976)
    49. Tiger in the Stars, Zach Hughes (1976)
    50. West of Honor, Jerry Pournelle (1976)
    51. Mindwipe!, Steve Hahn (1976)
    52. The Extraterritorial, John Morressy (1977)
    53. The Ecolog, R. Faraday Nelson (1977)
    54. The River and the Dream, Raymond F. Jones (1977)
    55. Shepherd, Joan Hunter Holly (1977)
    56. Gift of the Manti, J. F. Bone and Roy Myers (1977)
    57. Shadow on the Stars, Robert B. Marcus Jr. (1977)