Saginair Rangers guarded the interests of the Yonian States, riding winged felines and carrying thunderblades that could sling bolts of thunderfire. Their might came the Secret, a latent power of the mind. With the Prime Cipher, anyone could learn the Secret — and keeping the Cipher hidden was their highest priority.

But power corrupts, and when the Secret fell into the wrong hands, the realm was brought to ruin. In the Last Stand, the Prime Code was lost forever.

Or was it?

Generations passed, and the land of Yanakhon turned into an oppressed slave colony. Rumors spoke of an Heir knowing where the Prime Code had been stashed. But the colonial knight-detectives caught him.

Then one day, Sagiron, a young hunter from the Silwoods, discovers a strange scroll...