Has anyone seen Mr Lupin?

I was sort of wondering, cause I went down to his hut to get some meal worms for Trevor. The front door was ajar, and when I went in, it looked like, well, like someone had been going through his drawers in a hurry. Clothes on the floor. And his raven's cage is empty.

I looked around a bit, but I don't see him anywhere.

I mean, I know tonight's the full moon and everything, and he always goes away somewhere secure for that. But I was wondering, because of the way his stuff all looked, and because his raven's gone.