[ It was hard to imagine that the time would lead into what the grade was, so much as the act of participating and understanding what was happening. Otherwise only one particular court would do well. Most likely it was simply a statistic, and it'll take more to establish a baseline.

Why saliva and blood were effective for healing, which was especially so for humans, was a curiosity indeed. Obviously they were going to figure that out today, but for an educated guess... It was the same reason why her scars healed further after each heavy feeding from Karma. Which would've been more exhausting for Karma if she didn't feed from Eden as well. ]

It works like this on human injuries because... There's a specific factor in vampire cells that activate when in contact with the bloodstream? It attaches and integrates with the system and speeds the recovery of everything. Saliva still has some of those cells, so while even less concentrated, it can have a similar effect from even a novice after a certain point.

[ And it would take a specific amount of blood from a fully fledged vampire for there to be enough to leave an impact, which also fades without regular recurrence- that part she knew very well. This 'loan' didn't last forever in the receiver, not for something like this. ]