The classic 'shovel party', where a group of mortals are made into Vampires and left to fend for themselves. Only those who win are worthy of being shown the ropes of their new afterlives.
The following is a brief excerpt from Gustav's Grimoire: a manual of interesting and terrible things one might find in the night written by Gustav Ingram. There have always been vampires: those that shun the light of day, and drink the lifeblood of others in order to fuel their own accursed bodies. Anyone that tells you otherwise is a liar, idiot, or one of their pawns. However: Some time in the past other strange creatures of the night have found themselves on and one such creature is very similar to the vampire you can hear stories whispered in the corners of taverns at night. They aren't from here. They came from somewhere else. I don't know where, none of the ones I have managed to catch have been old enough to know. But they're out there, and they are far more dangerous than your 'ordinary vampire' - They can do things that since have been thought impossible. Some times, they make more of themselves. Whether it is an attempt to 'share their gift' or 'inflict their curse' depends on your point of view. Usually these kinds of things happen in secret, but apparently there are some that don't care for secrecy. They don't bother to hide in the shadows, and simply act as they will. I know what I do from years of gathering clues, trying to solve the riddle of where these dangerous creatures came from. A whispered tale here, a gurgled story on a poor souls deathbed there. Messages written in blood, fragments of burnt up paper. I've been piecing it together for a long time, and of course everyone thinks I'm crazy. Might be I am. But these things are happening. I caught one of the new ones and he told me everything he could before he asked me to end him.