Educated men say that they are the tombs of two French noblemen who came with many others to help the voivode John Hunyadi defend Christendom against the Turks four hundred years ago. Men who are not educated affirm that for four centuries there has lain beneath these marble slabs an oupire and a vampire: one an eater of human flesh, the other a drinker of human blood.
On many occasions, during the four hundred years, those graves have opened, to the terror and the horror of the surrounding country. Sometimes, two corpses were found beneath the stones, one tall and one short, which gave every indication of recent death: eyes open and shining, blood liquid in the veins, tongues moist and lips red. At other times, the open graves displayed nothing but their emptiness: two black cavities from which the odour of death emerged. It is certain, moreover, that many attempts have been made to destroy these graves: the marble slabs have been broken, the rubble dispersed, the ground levelled-and invariably, when some time has passed, the two black stones resurface beneath the grass or the corn, intact once again, bearing the same funerary inscriptions.
It is certain-as the registers of the courts testify-that within the last twenty years alone, the brothers Ténèbre have been hanged in a dozen different places in Hungary, and seven times impaled in Turkish territory...
Knightshade provides examples of the following tropes:
- Big Bad Duumvirate: The two brothers appear to be on equal terms.
- Master of Disguise: Both brothers have disguises that range from mundane to outright bizarre.
- Name's the Same: The original French title of the story is Le Chevalier Ténèbre. Which would most literally translate into English as "The Dark Knight".
- Our Vampires Are Different: Paul Féval's three vampire stories aren't even the same as each other in their rules and mythos.
- Secret Identity: A big part of how the brothers operate.