Part of The terminology commonly used by Notte's family: More: the hunger experienced by all Night-Children, or vampires. It’s powerful enough that it seems to create split personalities in some people.
A newly-made vampire is always overwhelmed by the Beast, losing their minds to the hunger. It’s one of the reasons He’s one of the oldest living beings among the Mythos. The father of all vampires (or Night-Children, as they’re called),... More is so careful about who is “made” and when; facilities to contain and feed this new In a word, vampires. There are two branches of Night-Children, but both stem from Notte, as he was the first. More must be readily available, and the chosen human must demonstrate great willpower and self-control.
(Note: A vampire, and Notte’s oldest surviving child (not his first, however). More is not so careful with her own children, but she relishes the lack of control. To her, lack of control is a sign of strength – but that’s a whole other story.)