The age of gods is dying, and the tribes of Britain descend into chaos. One man hears a voice that will change history.

A forbidden union gives birth to a prophecy that will outlive the world that made it.

Alone for years in the wild, Marlin returns a changed man - Hardened by trial tempered by faith, and carrying the weight of visions yet to come. As Vortigern's fragile alliance crumbles and Saecsen power surges, Merlin must choose when - and how to shape the fate of Britain.

A Britain bleeds, Merlin must forge unity from chaos - while darkness moves behind kings and blades.

War looms ever nearer. Merlin's past resurfaces in visions and blood. treachery brews as Morgian summons spirits and bargains with the enemy. Merlin must walk the line between peace and vengeance, or watch Britain burn from within.