I was surprised by how much I appreciated Andrew Lownie's "Traitor King." I really wasn't expecting to learn as much from it as I did. I think that's what eventually led me to read Caroline Blackwood's account of what happened to Wallis Simpson after the Duke of Windsor's death and her encounter with the imperious and volatile MaƮtre Blum, Simpson's one-time lawyer, friend (?), and gatekeeper.