As the days go by and revenge does not descend upon him, Draco slowly uncoils from a state of constant readiness and starts to grow used to the idea of a Weasley teaching in proximity to him. It's made easier by how delighted Scorpius is to have his best friend's mother teaching at Hogwarts as well as his dad. More than once, he's looked up at his son's bursting into his office to babble a story about 'Professor Al's Mum' and then disappearing just as quickly, and going back to grading with an affectionate smile on his face.

Never in a million years had he believed his son's best friend would be Albus Potter. He isn't even certain stranger things have happened. But he's glad it has happened.

As it turns out, he'd let his guard down far too easily, and he can hear the ring of triumph in Ginny's voice as she flags him down. He casts about a little desperately for a suitable excuse, but for once, he's come up entirely empty: his afternoon is open, he hasn't got a stack of essays to review, and there's no reason for him not to swing by her class to assist. "Of course I'd be delighted, Professor Weasley," he says, looking forbiddingly over the class, some of which snaps to attention. "Back in the day, is it?" he murmurs for her to hear as he folds his arms and waits.