Carolinus watches the world drift away from magic as medieval kingdoms give way to logic and science. In a realm where nature’s wonders still cling to life, the Green Wizard gathers his three magical brothers to propose something bold: a final sanctuary, a last realm of magic, a nature reserve hidden from the march of mankind. The Blue Wizard Solarius, who rules the heavens and seas, and the Golden Wizard Lo Tae Zhao, whose domain is light and air, quickly back the plan. But the Red Wizard Ommadon, master of black magic, has a harsher vision: to corrupt humanity with vice, pushing science into hubris and cruelty until people ruin themselves.
To avoid warring among themselves, the wizards decide to send a team to seize Ommadon’s crown, the source of his power. The mission-friendly lineup includes the valiant knight Sir Orrin Neville-Smythe and the young dragon Gorbash, with the enchanted Shield of Saturn to deflect dark magic and Lo Tae Zhao’s flute that can lull dragons to sleep. Carolinus consults the ancient force Antiquity to choose a leader from the future, and it points him to a man of science descended from a legendary hero: in 20th‑century Boston, a former scientist turned board game designer named Peter Dickinson, who is famously obsessed with dragons. With care and pressure, Carolinus brings Peter back through time, and the teenager‑turned‑adult figure soon finds himself drawn to Carolinus’ ward, Princess Melisande.
As the quest begins, Ommadon sends his dragon Bryagh to seize Peter, and a spell accident forces an extraordinary merge: Peter’s mind takes over Gorbash’s body, giving him a dragon’s body with a human mind. Under the tutelage of the elder dragon Smrgol, Peter learns to blend dragonflight and fire with rational explanation, discovering that magic and science can coexist as Peter begins to translate dragon physics into understandable terms. The party grows with the addition of the noble wolf Aragh, the archer Danielle, and the steadfast adviser Giles, who carries the weight of ancient lore as they march toward Ommadon’s realm.
Their journey tests them at every turn. They barely survive an assault by Sandmurks and press onward until Danielle and Sir Orrin Neville-Smythe are captured by an ogre. Peter fights bravely to rescue Danielle, nearly paying with his life, but is saved when Smrgol sacrifices himself to topple the ogre. In the Red Wizard’s domain, the team faces the Worm of Sligoff, a monstrous creature that Peter destroys by igniting the sulfuric acid it excretes. Ommadon counters with despair, casting a spell to crush the group’s will, only to have it repelled by Solarius’ shield. Dragons rain down in cloudy torrents, and Giles uses Lo Tae Zhao’s flute to lull them to sleep. Yet the price is steep: Bryagh kills Giles, Aragh, and Danielle, and the valiant Sir Orrin dies after slaying Bryagh.
In the climactic clash, Ommadon appears to witness a last spark of magic, but Peter refuses to surrender to enchantment. Drawing on the principle of impenetrability, Peter separates himself from Gorbash and counteracts the wizard’s assertions of magic with rigorous science and logic, denying the very existence of magic. His argument shatters Ommadon’s power, freeing the other heroes and allowing the magical realm to crystallize anew. Although Peter has denied himself the world of magic, the bond has a lasting, bittersweet reward: he stirs Melisande with a kiss, and the crown is left in her hands as she awakens to a future where magic and science can coexist.
Back in the bustling streets of 20th‑century Boston, Peter becomes a man who keeps the balance between two worlds — he’s seen selling the magic shield to a pawnbroker, when Princess Melisande arrives, carrying Ommadon’s crown. The two share a quiet, hopeful moment, and their embrace hints at a future where wonder might endure in a world that also seeks explanation.