Dear Mr Cornwell,
Don’t worry I am not attaching a manuscript or requesting a spare first edition (I am amazed people actually ask for that!) just merely wanted to tell you how much I enjoy all of your books. I was a big Robin Hood and Ivanhoe fan as a child and I think something of your work really resonates with that now.
Anyway, please don’t feel like you need to reply, I’m sure you are a busy man and I wouldn’t want to detract from your writing time.
All the very best and thanks for all the stories.
Michael