In this episode of Marginalia, I spoke via Skype with author Oyinkan Braithwaite at her home in Lagos, Nigeria. That’s also the setting of her debut novel, which has a spoiler of a title: My Sister, the Serial Killer. The sisters are Korede and Ayoola. Korede is older, and takes quite seriously her responsibility to protect her younger sister, even to the point of cleaning up after Ayoola’s nasty habit of killing her boyfriends. I visited with Braithwaite just before the novel’s release. Here’s