Remus was beginning to feel woozy, his head swimming in a way that made it difficult to focus, even when Bellatrix grabbed hold of his jaw and made him stare at her. Some spark inside of him seemed to realise that she was pissed off and the defiant Marauder within burst into life.
"Sirius," he said, his eyes locked on Bellatrix's as he fought to keep his head clear. He hadn't responded before, Remus realised belatedly, and wondered what was going on in Sirius' head. "Sirius, look at what you're doing to me. I'm your best friend and you know how much I care about you. Please, stop this."
His legs felt like they were on fire, along with his back where his skin touched the silver chair. Blood was dripping down onto the dirt floor of the barn. It wasn't looking good, he knew, and Remus suspected his only chance was to break through to Sirius and get him to help set him free.
"You're not going to win," he told Bellatrix. "He's going to break through that curse soon, and he'll come back to us. You'll see."