The shadow of the horde

Imagine an age-old force, destructive and inexorable; a powerful army whose goal is not only the death of its enemy, but the obtaining of his exquisite pain and the harvest of his eternal despair.
To defile, corrupt, torture and degrade: such is the credo of the Howling Lords of the Horde. Facing them stands Richard Rade, thrown against his will into a ravaged world; a simple man confronted by a pack of sadistic killers. But what can he do, alone in the face of this plague of the Multiverse? Especially when this, without his knowledge, has perhaps already marked him in his soul and in his flesh? And what are his murderous impulses that come to haunt him and flourish in the shadow of the Horde?