But the impression of this figure of Margaret--with all Margaret's character taken out of it, as completely as if some evil spirit had got possession of her form--was so deeply stamped upon his imagination, that when he wakened he felt hardly able to separate the Una from the Duessa; and the dislike he had to the latter seemed to envelop and disfigure the former. 
The impression of this figure of Margaret, with all her character taken out of it, was deeply stamped upon his imagination when he wakened.
