In all seriousness though, they are partly a reference to the Van Helsing movie - not to be confused with the extremely different and still awesome TV series of the same name, or the animated movie by the same name. The Malleus Maleficarum, in all its propagandized glory, makes it's debut, via the True Apothecary, who is more or less their leader - which is deliciously hypocritical, for even though he has taken care to imprison himself and use his powers only for the betterment of man, he is a Lich himself. But perhaps, being the original doctor, he might have used only natural victims of death to learn necromancy? Hippocrates is grey at best, gallivanting as white...
Ohhhhh don't it make his red eyes bluuuuuuuue...
This persecution of women also can be said to be responsible for the new trade of Slave Girls, and the rise in Courtesan activities... no such thing as bad publicity, for certain facets of the market.
Also, in the next version, when parties of Slayers appear, parties of Alchemists also appear. Once, these two groups were united as the puritan Brotherhood of Abel... a new cult driven to eradicate wickedness from Calradia. But the upstarts cornered Lamia with their entire force, and she eradicated them all (this is one of the stories told by the new Quick Battles). Since then, strife among them, as to how to reconstruct the Brotherhood, has instead led to their ultimate division. I have considered adding some storylines where a character can try to rekindle the Brotherhood, and wind up with parties composed half-and-half of Slayers and Alchemists. Probably for the next version.