Title: I'll Kill You In Peace
He'd done everything he could. He'd slipped Umbridge the false Veritaserum, refused to give her more. He'd called Headquarters, swallowing angry bile, as soon as he'd reached his chambers. When Potter hadn't returned, he'd hurried after him.
It wasn't his fault, he reminded himself, staring at a torn picture showing an agitated, young Sirius Black.
He'd done all he could.
So he whipped out his wand, allowing himself to watch the smile turn to black, just as he'd watched the other half of the picture burn long ago. Allowing the wave of vindictive pleasure to wash quietly over his spine.