Though she couldn't see their faces from where she hid in the corridor, Hermione could just picture Oliver looking at Augustus with the same expression that his father always had when he was trying to seem unimpressed. A single raised eyebrow, a gentle twitch of his lips that accentuated his dimples. It was enough to make her smile. She considered walking in and stopping Augustus from explaining bits about their past, but she knew how disappointed her son would be. His parents tried to shield him from the ugliness of their history when he would ask. Didn't he have a right to know some of it, at least? She reserved the right to interrupt if he started to reveal too much.