The Chocolatiers thought that it would be merciful if they killed Affie out of Materyllis’ sight, but Materyllis disagreed. She loved Affie like her own daughter, and she believed that she herself should euthanize Affie. So she did.
After Affie’s death in maybe 1960 or so, Materyllis changed her ways. She left the Chocolatiers. She moved back to her Yerxa Road house in North Cambridge. Those mortals who remembered Materyllis noticed that, when she moved back into the neighborhood, she was not as active as she had been. Materyllis used to actively make and maintain friendships with mortals when she initially lived on Yerxa Road. Now she answered requests from old-timers, but she did not seek out new mortal friends and patients. Because she was more removed from her neighborhood, her air of mystery lent itself to forbidding rumors about her being a cannibalistic, murdering witch.
Materyllis’ relationships with other vampires changed as well. After withdrawing physically from the Chocolatiers, she seemed to withdraw emotionally as well. Susie felt this most strongly, noting that Materyllis did not talk to her as much, visit her as frequently or even really confide in her. Materyllis was nothing but cordial to the Chocolatiers, and she responded when they asked her for help, but she certainly was extinguished.
Over time, Materyllis’ increasing reclusivity and remoteness converged with her reputation among mortals as a magical menace. Also new vampires appeared who had no idea of Materyllis’ past as a helpful conjure woman; without Susie and the Chocolatiers to vouch for her any more [since she was keeping so remote from them], Materyllis appeared like a crabby, probably dangerous hermit to newer generations of vampires. People did continue to make their way to her, mostly to die in peace, so her vocation became less of healing the living and more of healing those about to die. It’s like Mikael in In the Time of the Bells, where Maria Gripe writes something like, “He had few friends among the living, but, among the dead, he had many.” Painfully enough, her decision to cut herself off after Affie’s death cut herself off also from the practice of conjure healing the living [or at least the undead] which gave her the most satisfaction.
This is where we find her now. Scratch what I said earlier about her being an author of sentimental doggerel. She may indeed be related to Phillis Wheatley, but that’s not very relevant to her character. She doesn’t get out much among the other vampires, although she does visit La Biblio to get some conjure supplies for Mark. Mark?! Of course…Mark has the power of connections; he’s the ultimate middleman. The other people who actually see her in person are Susie and the Chocolatiers. Her reputation lives more actively than she does at this point. I’m sure there are a few mortals who remember being frightened by tales of the conjure witch on Yerxa Road when they were misbehaving….
Of course, this puts her in the perfect position for a super-secret plot development that will shoot the series in an exciting new direction….