Can a lifetime of nightmarish visions and other-worldly hallucinations prepare you for an actual world-hop to a realm where your very survival depends on what you can recall from those psychic excursions? Just ask James Wagner, a man whose earthly life from childhood was a tumult of one phantasmagoric episode after another. These visions, intensifying in capacity and duration over the years, soon overtake and finally eclipse his coherent life, whisking him bodily into a bold, new reality --- a draconian world of crudity and coarseness, of war and slavery, of lethal enemies and enlistable allies and maybe a little hope. But in order to exist, Wagner must hide his true origin and adopt the customs and penchants of the mediaevalesque society into which he's been cast. And if he can only recall and unriddle the secrets hidden within his former visionscapes, maybe he can help to ransom this new realm from its own evils.