No, Remus.

I'm very glad you asked the question. I'd have asked myself if I'd seen it before now.

I distrust the way these spells interact. The very fact that the Private Message spell insists on the master's inclusion makes me worry that it could make the Order spell unstable.

I do trust Bill to have thoroughly tested it, of course, so I'll hope for the best. I suppose we'll have to wait now and see it put to the test.