I daresay it will take me a little longer than that, with so much correspondence to review, but it's heartening to know it likely won't be a terribly long time.
That's kind, but it won't be necessary. I trust to your assessment of his progress, and if he needs help indoors, there are a few textbooks he has shown me.
I expect you're wondering about the big question, aren't you? Where the matter that is vanished goes to? There's an awful debate over that.