Elana is not having a great day. It actually started pretty okay; she found an Elder Scroll and successfully made off with it before anyone could catch her.
And then everything went to shit because it turns out her mother had already read the scroll and was just waiting for Elana to put it and herself in the same place so she could lock them both up at once. Now she's been chased all the way back to Dimhollow, which she thought was hers but apparently that was just another lie it was convenient for her to believe. None of the thralls here are answering her commands, and while individually or even in small groups they're hardly a threat, there's also a small army of dremora she has to contend with. Where did Valerica even get the magicka for all these?
Elana is steadily being herded to the central chamber, where she can feel a ritual prickling at the nape of her neck. She doesn't like it. Snarling, she rips lifeforce out of a man to her right and sends the energy blasting out as an explosive fireball in the face of the advancing churl. She backs up another step. Soon, she's going to have to make a run down the stairs at her back.