Joyce Carol Oates writes at lukewarm length about Patricia Highsmith, and then praises Ruth Rendell effusively in a footnote. Hilary Mantel writes about Sybille Bedford, spending most of the time on A Legacy. I've owned a copy of A Compass Error and of A Legacy, bought in Canada, I think but I can't find them at the moment. I've read Jigsaw and A Favorite of the Gods, but have never owned them.