What is it she shouts?
Sounds like Abuscus?
She cries, "Abigail," followed by "Barnabas."
I love that scene!  Trask is SO intense that he almost seems to be manhandling his costar, though of course he isn't.  No matter how many times I watch it, I get goosebumps when he forces Vicki to the ground and yells, "Down into the dust.  I have the witch!"