Absolutely not obligatory deaths. Sullivan Deirdre

The sixteen -year -old twins Madlin and Kathlin, by the will of fate, move to a quiet balliff. But the very land of a strange, isolated Irish town stores terrible and bloody secrets... This is a damned place where teenage girls disappear from generation to generation in the vicinity. Life in a quiet town makes sisters in different directions. Farther and farther from each other. Kathlin is passionate about new love. And Madlin is captured by the study of the Witches. But the evil does not doze. When Cathlin's life is at risk, a difficult choice arises before Madlin. The girl has to decide for herself: who she is? And who wants to become? Rather, who will she have to become to save her sister?