I used this address the database.
Lemony Snicket
HarperCollins Children's Books
1350 Avenue of the Americas
New York, NY 10019
USA
I think the problem is that his new book will not be published by Harper Collins and, instead, Little, Brown, and Co. Can you find another address for him?
P.S. this is my first Return to Sender

Received: Alan Rickman, Suzanne Collins, Judge Judy, Maggie Smith, The Fray, Tim McGraw, George Jones (AP), John Ondrasik (Five For Fighting), Switchfoot, Paula Deen, Flo the Progressive Girl, and Barack Obama (PP).
Most Wanted:
JK RowlingCheck out my website please: http://autographsnthangs.weebly.com/