Is it recommend to have more then one character?

Also do humans know about the existence of vampires? Besides the human servants in the castle of course. 

If they don't, then what's the rumor/story in town, about the castle full of beautiful 20 somethings.

Also do vampire have the ability to glamour humans who they drink from? Like make them forget it happened or something? 

Any vampire hunter factions among the humans in the world?

The surname Krishkov sounds Eastern European. Is that where King Duvalt hails from? Since the castle is in Wales, I assume welsh, but the surname suggest otherwise.  :)

Is there a Transylvania (Romanian) vampire court? With ties to the famous Count Dracula!?