No one is safe.  No one can hide.  No one is holy enough to ward them off.  Xander learned this the hard way.  His father was a priest and his mother was a nun.  It was during the time when the curch had the greatest power in the land.  But that didn't stop  the unholy beast from profaining them.  Blinding the priest, one particular night monster had started to change him to be a ngiht creature as well, then sent him to make Xander with one particular nun.  This would be the all time biggest disgrace that could befall the church and crumble the foundation that all it's power was riding upon.
After the deed was done that one monster came to their room and killed the priest.  Xander's mother screamed.  She was silenced as he snatched her up and bound away to his own safe lair.
"Wh…what do you want from me?" the nun asked.
"just the child."
"Who are you?"
"well, I suppose I CAN tell you who I am, being that we'll be together for 9 months…."
"You will keep me safe?"
"Yes."
"so tell me.  who are you?"
"Vladimir Nekov"
so it came to pass that he kept her safe and fed for 9 months.  The day of Xander's birth both were excited.  He kept her alive for another year before he could take care of Xander himself, so killed the mother and sucked the blood from her.
During the day, Vladimir woul dhave Xander in the coffin with him for safe keeping, but as the lad grew older, he was forced to get him a pen for the day light hours, where the boy could play and nap.  During th enight, however through out the boy's youth, Vlad would teach him life skills needed for the future.

The day then came on Xander's 15th birthday when he fnally saw the night sky .  as he and Vladimir emerged from the dep cave they'd been in since his birth, Xander saw the army that he was to lead to take over the world.  Vlad barked something that Xander couldn't understand, causing the army to kneel before them.  But xnader soon found it was to him.  Vlad too got down on one knee. 
Just as training taught him, Xnader called out a command and the army rose to its feet.  Continueing on with the lesson, the young leader announced a speech of words he never understood, but was taught, regardess, to speak them.  The army cried out and then turned to leave. 
"well done, Xnader." Vladimir said to him.
"father, what does this all mean?"
"it means that the vamire race is ready to take over.  Endowed with the power of god, you will lead us to victory, my son."
Vadimir had turned to reevter their cave home, leaving xander outside to whisper to himself, puzzled, "vampires?"  xander followed vlad into their home and caught up withhim.  "vampires, father?  What are these?"
"I am one, Xander.  YOU are one.  What do you think we've been supping on all this time?  Tea and cakes?  It's human blood!"
"what are humans?"
"powerless beings that have sought to kill of our race for eons.  But now that you are here, with us, it is OUR turn to rule the world!"