Blood & Soul Back of the Book Story Description

So you’re clicking through the books on Amazon or reading the back of a book in a bookstore and you read this story description:

A powerful spell banished demons to the Underworld ages ago. Now they gather seething beneath an ancient portal. It’s foretold the king of the Midvast will be sacrificed and Quuma’s demonic horde will erupt from the portal, their shades becoming flesh, unrestrained to quench their lust for killing. The reek of ruin will cover the lands as it did in the ages before the spell.

Ledarrin is the bastard prince of the Midvast living in the shadows of a revered dynasty. Despite his lineage, he’s the favored son of the king. Mathagel, the pureblood son, usurps the throne in fear of losing his birthright. To secure his destiny he schemes to kill Ledarrin. Amid clashing factions, Ledarrin escapes the city. But survival of the realm seems lost.

Hunted by a legendary assassin, Ledarrin begins a heart-pounding adventure into a deadly future he has yet to understand; a journey marked by loss, seduction and betrayal that leads to the discovery of his true identity. He’s quest is joined by aging warriors and unlikely allies in a race to find the Creed of Kings; ancient scrolls that will thwart Quuma’s plans. But time is slipping away. He must forge a new path free from the shadows of a dynasty, away from blood and into soul.

Help me! I tried to keep it simple. That’s about the 10th draft! Boiling down a 166K word epic into 259 words is challenging. But does this zing?