
Another Fine Myth is a 1978 novel by Robert Lynn Asprin, and is the first book in the Myth Adventures series.

The Castle of Dark is a novel by Tanith Lee published in 1978.

Conan and the Sorcerer is a fantasy novel written by Andrew J. Offutt and illustrated by Esteban Maroto. Featuring Robert E. Howard's sword and sorcery hero Conan the Barbarian, it is the first in a trilogy continuing with Conan the Mercenary and concluding with The Sword of Skelos. It was first published in paperback by Sunridge Press in October 1978, and reprinted in May 1979, 1982, and March 1984 by Ace Books.

The Courts of Chaos is fantasy novel by American writer Roger Zelazny, the fifth book in the Chronicles of Amber series. It was first published in serial format in Galaxy Science Fiction.

Frankenstein's Aunt is a novel by Allan Rune Pettersson, first published in Sweden in 1978.

Gloriana, or The Unfulfill'd Queen is a work of literary fantasy by British novelist Michael Moorcock. It was first published in 1978 and has remained in print ever since.

Night's Master is a 1978 fantasy novel by British writer Tanith Lee, the first in the Tales from the Flat Earth series. It has been translated into Dutch, Italian, French, German and Spanish. It was published with illustrations by George Barr in 1978 and by Alicia Austin in 1985. It was nominated for a World Fantasy Award for Best Novel in 1979.

The Pirate of World's End is a fantasy by American writer Lin Carter, set on a decadent far-future Earth in which all the world's land masses have supposedly drifted back together to form a last supercontinent called Gondwane. The book is chronologically the fifth in Carter's Gondwane Epic. It was first published in paperback by DAW Books in October 1978. A trade paperback edition was published by Wildside Press in January 2001 and an ebook edition by Thunderchild Publishing in July 2019. The book includes "A Glossary of Places Mentioned in the Text" by the author.

Renegade of Callisto is a science fantasy novel by American writer Lin Carter, the eighth and last in his Callisto series. It was first published in paperback by Dell Books in August 1978, and reprinted once, in November of the same year. A tribute to Edgar Rice Burroughs's The Chessmen of Mars, the book introduces the game of Darza, Carter's equivalent of Jetan. An appendix details the rules.

Saint Camber is a historical fantasy novel by American-born author Katherine Kurtz. It was first published by Ballantine Books in 1978. It was the fifth of Kurtz' Deryni novels to be published, and the second book in her second Deryni trilogy, The Legends of Camber of Culdi. The latter trilogy serves as prequels to The Chronicles of the Deryni series that Kurtz wrote from 1970 to 1973, and it details the events that occurred two centuries before the Chronicles trilogy.

A Swiftly Tilting Planet is a science fiction novel by Madeleine L'Engle, the third book in the Time Quintet. It was first published in 1978 with cover art by Diane Dillon.

The Sword Smith is a low fantasy fiction by American writer Eleanor Arnason, published in 1978 by Condor (ISBN 0-89516-028-5). It had no introduction, the beginning of the story plunged straight into the narration of a smith on the run, named Limper, with a young dragon named Nargri. Almost all explanations about who they were and why they were on the run was revealed through dialogues between the characters.

The Wanderer from Beyond is a novel by Philippe Ebly published in France in 1978.

What Dreams May Come is a 1978 novel by Richard Matheson. The plot centers on Chris, a man who dies then goes to Heaven, but descends into Hell to rescue his wife. It was adapted in 1998 into the Academy Award-winning film What Dreams May Come starring Robin Williams, Cuba Gooding, Jr., and Annabella Sciorra.

The White Dragon is a science fantasy novel by American-Irish author Anne McCaffrey. It completes the original Dragonriders trilogy in the Dragonriders of Pern series, seven years after the second book. It was first published by Del Rey Books in June 1978, one year before the young adult Harper Hall trilogy.

Wind from The Abyss is a science fantasy novel by American writer Janet Morris, published in 1978. It is the third book of her Silistra series.

Wyst: Alastor 1716 (1978) is a science fiction novel by Jack Vance first published by DAW Books. It is the third and last novel set in the Alastor Cluster, a group of thousands of stars and planets ruled by the mysterious Connatic, which is a part of Vance's Gaean Reach.