That didn't sound like the worst suggestion Arcturus had ever heard. At least there was nothing frighteningly muggle about a bit of wood and bandaging. Primitive, compared to the work of a proper healer, but not objectionable, and he was having to consider unorthodox solutions now. 'Yes, that might help. It would prevent any more damage being done until the potion can be made,' he replied, not quite committing to it yet, but making it clear that he wasn't ruling it out, either.
'I'm sorry, I know this is rude…' he indicated the phone, on which he was still carefully tapping out a message. Ordinarily he'd no more do that in front of a guest than he would sit at his desk and start writing a long letter while ignoring them. He knew that Hamilton would understand why, and not be offended by it, but he couldn't help but say it, all the same.
Message sent, he sighed. 'Shall I make tea? The tea will be cold. I'll make more tea. I expect a sugary cup will do Sirius some good, from the look of him.' And it was something to do, while he waited, and something that wasn't neglectful.
It wasn't too much later when the discussion was settled, and he told Alexander, 'That was a fine suggestion of yours. Longbottom is going to brew the potion, and in the meantime Mr Lupin is going to visit, and cast some spell to keep Sirius' arm still, just as you said, and in the right place to heal. It sounds an awful thing, and it's going to hurt him, but it can't be helped, and it's better to have it done now than wait.' He paused, and then gave his friend an appreciative look. 'Thank you. For staying, and – well, I wouldn't have thought to ask them, on my own.'