Fanmail.biz

She is really famous so why don't you have her! Please! We love Magic Tree house!! We need her autograph. Does anyone agree with me!!

I found this address for her
Mary Pope Osborne
c/o Random House, Inc.
1745 Broadway
New York, NY 10019

or
http://www.magictreehouse.com/about/contact.html

I sent to her over a year ago and never got a response.

Thanks!