That short story is one of the only things I've ever read by Gaskell. I agree its pretty good. Its the first tale in Michael Sims' The Phantom Coach, A Connoisseurs' Collection of Victorian Ghost Stories. Its a good collection for those who like such things.Before I saw Wives and Daughters I knew Mrs. Gaskell as a writer of ghost stories. "The Old Nurse's Tale" is one of her best.
The existence of Gaskell is one of many authors who make me wish I could live much longer than is likely. Undoubtedly a writer of quality, but there are so many great writers who are not top of my wish list, and I do wonder if I'll ever get around to reading Gaskell much before my time comes. I'll do well to get through all the Dickens', Balzac's and Trollope's, and they take priority I think. Sigh.