The Incompleat Enchanter Series by L. Sprague de Camp, Fletcher Pratt, Christopher Stasheff, Holly Lisle, John Maddox Roberts, Roland J. Green, Tom Wham, Frieda A. Murray

The Mathematics of Magic - it was the greatest discovery ever. Or so thought Professor Harold Shea. With the proper equations he could instantly transport himself and his friend Reed Chalmers back - or sideways - in time to all the wondrous lands of ancient myth and legend.But slips in time were a hazard. and Shea's magic didn't always work quite as he expected. A dragon spell might yield a hundred dragons - or, even worse, one-tenth of a dragon... moreThe Mathematics of Magic - it was the greatest discovery ever. Or so thought Professor Harold Shea. With the proper equations he could instantly transport himself and his friend Reed Chalmers back - or sideways - in time to all the wondrous lands of ancient myth and legend.But slips in time were a hazard. and Shea's magic didn't always work quite as he expected. A dragon spell might yield a hundred dragons - or, even worse, one-tenth of a dragon. And the various imaginary lands he travelled to held countless dangers that even Shea's equations couldn't predict... less

The Harold Shea stories are parallel world tales in which universes where magic works coexist with our own, and in which those based on the mythologies, legends, and literary fantasies of our world and can be reached by aligning one's mind to them by a system of symbolic logic. In The Castle of Iron, the authors' protagonist Harold Shea visits two such worlds, first (briefly) that of Samuel Taylor Coleridge's poem Kubla Khan and second that of Ludovico Ariosto's epic, the Orlando Furioso.

The Mathematics of Magic - it was the greatest discovery ever. Or so thought Professor Harold Shea. With the proper equations he could instantly transport himself and his friend Reed Chalmers back - or sideways - in time to all the wondrous lands of ancient myth and legend.But slips in time were a hazard. and Shea's magic didn't always work quite as he expected. A dragon spell might yield a hundred dragons - or, even worse, one-tenth of a dragon... moreThe Mathematics of Magic - it was the greatest discovery ever. Or so thought Professor Harold Shea. With the proper equations he could instantly transport himself and his friend Reed Chalmers back - or sideways - in time to all the wondrous lands of ancient myth and legend.But slips in time were a hazard. and Shea's magic didn't always work quite as he expected. A dragon spell might yield a hundred dragons - or, even worse, one-tenth of a dragon. And the various imaginary lands he travelled to held countless dangers that even Shea's equations couldn't predict...ONE OF THE GREATEST FANTASY ADVENTURES OF ALL TIME!Pure extraveganza and pure delight! - New York TimesDelightful fantasy - GalaxyA lot of fun: and you never met anything exactly like it in your life - Saturday Review of Literature less

The Mathematics of Magic was probably the greatest discovery of the ages - at least Professor Harold Shea thought so. With the proper equations, he could instantly transport himself back in time to all the wondrous lands of ancient legend. But slips in time were a hazard, and Shea's magic did not always work - at least, not quite as he expected.. moreThe Mathematics of Magic was probably the greatest discovery of the ages - at least Professor Harold Shea thought so. With the proper equations, he could instantly transport himself back in time to all the wondrous lands of ancient legend. But slips in time were a hazard, and Shea's magic did not always work - at least, not quite as he expected... This omnibus volume contains three episodes of the Magical Misadventures of Harold Shea: - The Castle of Iron (1950, novel)- The Mathematics of Magic (1940, novella)- The Roaring Trumpet (1940, novella)The stories in this omnibus were previously published as two books: 'The Incomplete Enchanter' and 'The Castle of Iron'. less

Two of SF's most acclaimed authors collaborate with John Maddox Roberts, Holly Lisle and Tom Wham to bring a whole new life to Professor Harold Shea and his band of not-so-merry companions in the impeccably conceived, richly-imagined sequel to The Complete Compleat Enchanter.

Harold Shea, the incomplete Enchanter and his partner Reed Chalmers leap into the Russia of Prince Igor, where warriors pursue them through an Arabian Nightmare. To escape, they leap into the universe of Edgar Rice Burroughs, and are chased to their next port of call--Shakespeare's The Tempest.

Omnibus including The Roaring Trumpet, The Mathematics of Magic, The Castle of Iron, The Wall of Serpents, and The Green Magician.The Baen edition includes an introduction by David Drake.

Harold Shea is a psychologist who dreams of adventure, but never gets beyond learning to fence and occasionally showing up at staff meetings dressed in horseback riding garb. But when he learns that his boss, Dr. Reed Chalmers, has developed a theory which allows a person to transport himself to any world he can imagine, Harold Shea decides to give it a whirl. This volume includes all the De Camp and Pratt Enchanter stories.