Darkness enveloped the remains of Victor's ancient Fortress, under which was a prison. A prison to incarcerate the most vicious creature to ever stalk the lands, William Corvinus, the first and most powerful Lycan, or Werewolf as such creatures are known by humans, for centuries. Now, the caves below the fortress are a tomb for William Corvinus and his twin brother, Marcus, the first vampire. Since both were killed by Michael Corvin, a hybrid, and Selene, Michael's mate and perhaps the strongest vampire after she killed Marcus . However, the first Vampire and Lycan are far from dead. As it was common belief that, once the first Vampire or Lycan are dead, their kind meet the same fate as well. Yet, that particular belief was wrong, for it was the other way around. As long as creatures with Lycan blood –more commonly William's- exist then the first Lycan will never perish, same thing with Vampires that as long as Marcus' blood flows through veins of other beings, he lives forever no matter how many times he undergoes life-threatening situations.

Below the remains of the fortress, the scattered pieces of Marcus' body -which was severed when pushed by Selene into the spinning blades of a chopper- were not still, but vibrating, somehow, coming close together. Bone reformed and were attached back, flesh melded into flesh, sinew connected them and finally skin covered them all. There he was, in his human form, standing above ground as if the events of the previous night never took place. He strolled through the cave, his eyes scanning everything and anything. He came to halt upon seeing a huge furry figure bent on a carcass of a human, devouring it.

"Brother," Marcus said slowly as he approached William "We…we're back!"

William straightened, his massive head-which was torn apart by Michael -was immaculate, and opening his jaws widely let out a bloodcurdling roar. Without any warning, William raised his enormous furred arm and brought it down on Marcus' cheek, making the latter soar through the air and go through a brick wall that collapsed on top of him. William neared his brother and pulled him from beneath the bricks before delivering a blow to his stomach, causing Marcus to fall to the ground, groaning in pain.

William proceeded to give his brother a kick, when the latter shouted abruptly, "Wait, it's me, Marcus!"

"I know," the werewolf hissed to his brother, which was a shock in itself, for William was trapped in this animalistic form, in which his power of speech was usually gone, presumably overcome by his savage nature. "You were wrong, Marcus"

"You-you… s-speak," Marcus said with glee. "You conquered your monster self!"

William let out a deep laugh that rung through the underground, and firmly choking Marcus' neck with his large hand, raised him so he was at eye level.

"You were wrong," he echoed his statement. "You may be stronger, Marcus, but you are still part vampire, hybrid or not, while I'm a pure Lycan and the first on as well, and as such I shall look after the best interests of my kin. After all, they are the reason I am back"

"I-I am your Kin!" Marcus retorted furiously.

"My kin will never consist of a vampire, much less a hybrid," William said softly. "It wasn't meant for us to unite, for centuries Vampires and Lycans battled. Why should it change now?"

"NO!" Marcus cried, then his voice became a mere whisper. "The bond we share…the…"

"The brotherly bond we once shared," William murmured, "is no more! You'd do well to stay out of my path…brother." With that William turned and walked away, the fur on his back fluttered as wind entered the cavern from a large gap in the ceiling, made by the falling chopper.

Marcus was enraged, his eyes emanated fury. He bowed his head, as his skin paled his features deformed. Long fangs replaced his canines. Two leathery wings erupted from his back, two sharp talons at the end of each. Unleashing a chilling scream, he launched at his brother, wings stretched and talons pointed at his back.

The talons impaled deep into the Lycan's furry back, causing him to howl in pain.

The Werewolf turned, his claws were around his brother's neck and with a mighty swipe of his arm, Marcus was flung through the crater in the underground cavern's roof. William took a moment to observe his wounds heal at unfathomable speed, before leaping upwards going through the crater himself. Landing on hard ground with a thud, William looked up at the sky and saw a silhouette of his brother soaring in the sky, his wings extended and flapping in rhythm.

Marcus, high above, bared his long fangs and let out a low-pitched screech that was heard by all Vampires, no matter how far they were.

William imitated him, letting out a roar that was audible to all Lycans. An ancient power it was, for the first Vampire and Lycan to call upon their own kind, relying on the similar blood flowing through their veins.

Leagues away, Severus Snape, sat in his chambers in Hogwarts School of Witchcraft and Wizardry, correcting a particularly lousy Potions essay by a sixth-year whom wouldn't differentiate a Lenoran Turnip from Konatan radish, he thought. Suddenly, his vision blurred. His hands instinctively went up to his mouth. His fingers fumbled through among his upper row of teeth, stopping at the canines. He could feel them sharpen and grow longer. His body became suddenly weak, his hands gripped the desk in front of him, he watched in horror as his nails grew at vast speed. He urgently opened the last drawer of his mahogany desk and pulled out a large vial filled with a thick, purple liquid. He gulped down the concoction and its effects were instantaneous. His vision straightened, his canines became their normal length and his nails grew back. It was as if the brief transformation didn't happen, but it did. Something is amiss, Snape thought worriedly as he abandoned the essay and walked out of his chambers, heading for the headmaster's office.