How does Mrs. Dean describe Cathy's behavior after the death of Linton in Chapter 30?

After Linton’s death, Cathy stays upstairs alone for two weeks; her only visitor is Zillah. Heathcliff shows Cathy that Linton has willed all his (and her) property to himself. Cathy finally comes downstairs one day when Heathcliff is away; she allows Hareton to help her reach some books, and to look at some of them with her.