Dear Mr. Lupin, My name is Viktor Krum, and I am currently living and working in England. I have far too much free time on my hands and am currently looking for an organization with which I can occupy my time. I was hoping that I could meet with you in person to discuss some possible groups. A dear friend suggested that I speak with you, a student who is not at Hogwarts presently as she is indisposed.
On a side note, I had the chance to meet with the late Headmaster Dumbledore several times while I was at Hogwarts, so many years ago. He had a most intriguing and rare pet. Do you know what might have happened to it? I mean, if one were to look for it, where would one start? Perhaps we can meet to speak about this as well.
Am I being too vague? Will he understand my meaning? Surely he must know that owls are currently being intercepted? I do not want to put him into any danger by openly asking him about the Order or by mentioning Hermione directly.