The Dark Side of the Moon (Wine of the Gods Book 23)

23rd story in the Wine of the Gods Universe.

A novella

Heliotrope is busy adapting tech from a parallel world for use by a batch of university professors. Too busy to sort out her feelings toward her infant daughter by a rapist. . . . until the baby goes missing. The Black Island Pyramid has recovered from their defeat, and they've started organizing again. And they want their children back. What are a few extra children, stolen here and there?

Heliotrope is High Society. Moonlighting as a Geek in a Medieval kingdom. How can she find and defeat the witches who've stolen her child?