So a couple days ago, snakeandprincess on tumblr publicado a little thing about how Kandrakar handled the Nerissa situation. She was nice enough to let me quote her post to type this article.

One of the huge points bought up is that there was no mention of how Cassidy's death and Nerissa's imprisonment were handled back on Earth. The W.i.t.c.h. girls had their astral drops to cover for them at school, and home, and such. But the drops are only temporary, since the girls eventually return home. But what about Cassidy and Nerissa; they'd never be going home. I’ve put some thought into the whole...