The orderly had read the note aloud for Alex, and he'd asked for a quill and parchment. A pencil might be easier, the girl had suggested, and he'd agreed with a sigh. After several minutes spent sizing up the paper and aligning his fingers to the edges, Alex managed a reply in a slow version of his usual scrawl.
Jamie and Sirius,
Congrats.
Alex
It was short, but legible (according to the orderly) and it would have to do.