Marc had definitely not expected to be called sir, and it startled a laugh out of him. "I'm not a teacher, you can just call me Marc," he offered. Unlike Nico, Marc had not been raised to call anyone sir, and he'd struggled at Hogwarts with the expectation that it somehow showed more respect than calling people by name. Marc still thought it mostly sounded generic, like you didn't care to remember someone's actual name, but fortunately it wasn't a problem he ran into a lot as an adult. "Victory of the people, that's pretty cool, though," he said. "Aurelius sounds about right," he said, with a shrug. "My middle name's after the guy on the Chocolate Frog Card, the one who blew up a village. That's much more exciting."
Walking slowly, so that he'd notice if either Sol or Nico stopped to look at anything, Marc nodded. "Is he starting Hogwarts soon, then?" he asked. Marc wasn't much of a judge of ages, but Nico looked almost old enough to be going to school. While Marc didn't remember Hogwarts particularly fondly, he had enjoyed certain things about Ravenclaw, so he smiled. "Professor Flitwick was my favourite teacher, and I think he's still head of Ravenclaw," he said to Nico. "At least, I haven't heard about him retiring, and we'd probably all send a present or something, if he did." Marc hoped someone else would be in charge of organising such a thing.
Marc hadn't known about Sol's first book, so he listened with interest. It didn't sound like the kind of thing he'd read - why would he, when he'd lived much the same experience? - but he could see how it would be popular. "We've definitely bound romances before," he said. It wasn't something he worked on personally, but Marc liked to hear his colleagues talk about their projects, so he knew some of the wilder details. "You get a lot of enchanted covers, so that with a tap of the wand you can make it look like something more boring. If you're reading it on the Knight Bus, or at work, or whatever."