The Complete Compleat Enchanter

Published in the UK as The Intrepid Enchanter in 1988.

Contents:

• Preface by David Drake
• The Roaring Trumpet (1940)
• The Mathematics of Magic (1940)
• The Castle of Iron (1950)
• The Wall of Serpents (1953)
• The Green Magician (1954)
  

Psychologist Harold Shea is bored with his job at the Garaden Institute – until his boss goes and figures out a way to move from one plane of reality to another through a series of logical equations.

But when Harold tries it, he makes a slight error – and finds himself flung into the midst of the Norse Eddas just before Ragnarok... then on to the worlds of "The Faerie Queene" and "Orlando Furioso"... to the realm of the Finnish "Kalevala"... and finally into Cuchulainn's Ireland.

Yet, faced with angry gods, evil sorcerers, misguided werewolves and other woes, Shea somehow fights, stumbles and magicks his way through.