The Dark Challenge is a story about reincarnation and how two souls are pitted against each other through a succession of lives that take place at important junctures in Earth's history. The main protagonist, the Black Knight, seeks to bring darkness and despair to humanity in perpetuity. His protagonist, Flame, is tasked with the almost impossible job of hunting him down through successive epochs in history, hoping to thwart his attempts through the principles of light and freedom of choice.
The hunt starts in early Mesopotamia with the Tower of Babel, and takes in pivotal moments of dark in human history: the perfidious annihilation of Carthage in Roman times; the devastation of the Great Plague of mediaeval Europe; the reign of Terror in the French Revolution and the waterlogged trenches of the Somme in the first world war.
As the seeds of destruction are sown in different historical timelines, relentlessly pushing the planet towards a precipice of chaos, Flame's ability to part the twists of time and hunt the dark is called into question by all around him.