[Chrom turns the letter a few times, trying to make sense of the drawing. He's not sure which part is the head, the oblong scribble or the dark scribble. He'd better keep the letter for reference, he decides.]

Dear Ales,

It's quite all right. Whatever you're able to contribute will be welcome. Work at the pace that is most comfortable for you, and feel free to request assistance should you need it. I will give my help gladly.

Maps of the mines would be exceptionally helpful. I would not wish for us to get lost in such a place. You have my thanks.

Sincerely,
Chrom