I've never read any of Streatfeild's famously old-fashioned "shoes" series, including Ballet Shoes, so this was the first book I've read by her. I picked up it up for kindle because a number of her adult novels have been reprinted very cheaply. I read about it in one of my favorite blogs Furrowed Middlebrow - the blogger included it in his 100-book Furrowed Middlebrow Syllabus.
I love mid-century British fiction by women. The Winter is Past is set during the very beginning of WWII, at an old country house, Levet. This is during a time of great social change for Britain, and Levet details these changes in microcosm.
I'm not sure that I would recommend it widely - it's a book in which little happens, and the main character, Sara, is frustratingly vague. Her relationship with her husband has been badly damaged, and she spends most of the book dithering about whether or not she will remain at Levet. I kept wanting to kick her in the ass and tell her to make a damned decision. Having said that, it's well-written, and readers who enjoy books published by VMC and Persephone would likely enjoy it.