These is the precursor series:
- The Hobbit, J. R. R. Tolkien (Aug. 1965)
- The Fellowship of the Ring, J. R. R. Tolkien (Oct. 1965)
- The Two Towers, J. R. R. Tolkien (Oct. 1965)
- The Return of the King, J. R. R. Tolkien (Dec. 1965)
- The Tolkien Reader, J. R. R. Tolkien (Sep. 1966)
- The Worm Ouroboros, E. R. Eddison (Apr. 1967 - later reprinted with colophon)
- Mistress of Mistresses, E. R. Eddison (Aug. 1967)
- A Fish Dinner in Memison, E. R. Eddison (Feb. 1968)
- The Road Goes Ever On, J. R. R. Tolkien and Donald Swann (Oct. 1968)
- Titus Groan, Mervyn Peake (Oct. 1968 - later reprinted with colophon)
- Gormenghast, Mervyn Peake (Oct. 1968 - later reprinted with colophon)
- Titus Alone, Mervyn Peake (Oct. 1968 - later reprinted with colophon)
- A Voyage to Arcturus, David Lindsay (Nov. 1968 - later reprinted with colophon)
- The Last Unicorn, Peter S. Beagle (Feb. 1969 - later reprinted with colophon)
- A Fine and Private Place, Peter S. Beagle (Feb. 1969 - later reprinted with "A Ballantine Adult Fantasy" on the cover)
- Smith of Wootton Major and Farmer Giles of Ham, J. R. R. Tolkien (Mar. 1969)
- Tolkien: A Look Behind "The Lord of the Rings", Lin Carter (Mar. 1969)
- The Mezentian Gate, E. R. Eddison (Apr. 1969)
- The Blue Star, Fletcher Pratt (May 1969) (#01602)
- The King of Elfland's Daughter, Lord Dunsany (Jun. 1969) (#01628)
- The Wood Beyond the World, William Morris (Jul. 1969) (#01652)
- The Silver Stallion, James Branch Cabell (Aug. 1969) (#01678)
- Lilith, George MacDonald (Sep. 1969) (#01711)
- Dragons, Elves, and Heroes, Lin Carter, ed. (Oct. 1969) (#01731)
- The Young Magicians, Lin Carter, ed. (Oct. 1969) (#01730)
- Figures of Earth, James Branch Cabell (Nov. 1969) (#01763)
- The Sorcerer's Ship, Hannes Bok (Dec. 1969) (#01795)
- Land of Unreason, Fletcher Pratt and L. Sprague de Camp (Jan. 1970) (#01814)
- The High Place, James Branch Cabell (Feb. 1970) (#01855-9)
- Lud-in-the-Mist, Hope Mirrlees (Mar. 1970) (#01880-X)
- At the Edge of the World, Lord Dunsany (Mar. 1970) (#01879-6)
- Phantastes, George MacDonald (Apr. 1970) (#01902-4)
- The Dream-Quest of Unknown Kadath, H. P. Lovecraft (May 1970) (#01923-7)
- Zothique, Clark Ashton Smith (Jun. 1970) (#01938-5)
- The Shaving of Shagpat, George Meredith (Jul. 1970) (#01958-X)
- The Island of the Mighty, Evangeline Walton (Jul. 1970) (#01959-8)
- Deryni Rising, Katherine Kurtz (Aug. 1970) (#01981-4)
- The Well at the World's End, Vol. 1, William Morris (Aug. 1970) (#01982-2)
- The Well at the World's End, Vol. 2, William Morris (Sep. 1970) (#02015-4)
- Golden Cities, Far, Lin Carter, ed. (Oct. 1970) (#02045-6)
- Beyond the Golden Stair, Hannes Bok (Nov. 1970) (#02093-6)
- The Broken Sword, Poul Anderson (Jan. 1971) (#02107-X)
- The Boats of the "Glen Carrig", William Hope Hodgson (Feb. 1971) (#02145-2)
- The Doom that Came to Sarnath and Other Stories, H. P. Lovecraft (Feb. 1971) (#02146)
- Something About Eve, James Branch Cabell (Mar. 1971) (#02067-7)
- Red Moon and Black Mountain, Joy Chant (Mar. 1971) (#02178-9)
- Hyperborea, Clark Ashton Smith (Apr. 1971) (#02206-8)
- Don Rodriguez: Chronicles of Shadow Valley, Lord Dunsany (May 1971) (#02244-0)
- Vathek, William Beckford (Jun. 1971) (#02279-3)
- The Man Who Was Thursday, G. K. Chesterton (Jul. 1971) (#02305-6)
- The Children of Llyr, Evangeline Walton (Aug. 1971) (#02332-3)
- The Cream of the Jest, James Branch Cabell (Sep. 1971) (#02364-1)
- New Worlds for Old, Lin Carter, ed. (Sep. 1971) (#02365-X)
- The Spawn of Cthulhu, Lin Carter, ed. (Oct. 1971) (#02394-3)
- Double Phoenix, Edmund Cooper and Roger Lancelyn Green (Nov. 1971) (#02420-6)
- The Water of the Wondrous Isles, William Morris (Nov. 1971) (#02421-4)
- Khaled, F. Marion Crawford (Dec. 1971) (#02446-X)
- The World's Desire, H. Rider Haggard and Andrew Lang (Jan. 1972) (#02467-2)
- Xiccarph, Clark Ashton Smith (Feb. 1972) (#02501-6)
- The Lost Continent, C. J. Cutcliffe Hyne (Feb. 1972) (#02502-4)
- Discoveries in Fantasy, Lin Carter, ed. (Mar. 1972) (#02546-6)
- Domnei, James Branch Cabell (Mar. 1972) (#02545-8)
- Kai Lung's Golden Hours, Ernest Bramah (Apr. 1972) (#02574-1)
- Deryni Checkmate, Katherine Kurtz (May 1972) (#02598-9)
- Beyond the Fields We Know, Lord Dunsany (May 1972) (#02599-7)
- The Three Impostors, Arthur Machen (Jun. 1972) (#02643-8)
- The Night Land, Vol. 1, William Hope Hodgson (Jul. 1972) (#02669-1)
- The Night Land, Vol. 2, William Hope Hodgson (Jul. 1972) (#02670-5)
- The Song of Rhiannon, Evangeline Walton (Aug. 1972) (#02773-6)
- Great Short Novels of Adult Fantasy I, Lin Carter, ed. (Sep. 1972) (#02789-2)
- Evenor, George MacDonald (Nov. 1972) (#02874)
- Orlando Furioso: The Ring of Angelica, Volume 1, Ludovico Ariosto, translated by Richard Hodgens (Jan. 1973) (#03057-5)
- The Charwoman's Shadow, Lord Dunsany (Feb. 1973) (#03085-0)
- Great Short Novels of Adult Fantasy Volume II, Lin Carter, ed. (Mar. 1973) (#03162-8)
- The Sundering Flood, William Morris (May 1973) (#03261-6)
- Imaginary Worlds: the Art of Fantasy, Lin Carter (Jun. 1973) (#03309-4)
- Poseidonis, Clark Ashton Smith (Jul. 1973) (#03353-1)
- Excalibur, Sanders Anne Laubenthal (Aug. 1973) (#23416-2)
- High Deryni, Katherine Kurtz (Sep. 1973) (#23485-5)
- Hrolf Kraki's Saga, Poul Anderson (Oct. 1973) (#23562-2)
- The People of the Mist, H. Rider Haggard (Dec. 1973) (#23660-2)
- Kai Lung Unrolls His Mat, Ernest Bramah (Feb. 1974) (#023787-0)
- Over the Hills and Far Away, Lord Dunsany (Apr. 1974) (#023886-9)