Dear Mark
How are you? I'm beginning to wonder, since you haven't written me in over a month. Where are you? What are you doing? I know you'd never elope with a handsome stranger without telling me, so that can't be that case. I hope nothing's happened to you, or one of the others.
I tried calling a few times, but all I get is the answering machine. Why aren't you at home? I'm beginning to sound like your mother, aren't I? Sorry.
Just... get back to me, ok? Let me know you're all right. I'm getting a bit worried here.
Collins.