Deletion of Do Not Open

Comment: Reviews in http://www.publishersweekly.com/978-0-7566-3205-2 Publishers Weekly, http://connection.ebscohost.com/c/book-reviews/27075781/best-kept-secrets Library Journal, http://connection.ebscohost.com/c/book-reviews/60976680/best-kept-secret Booklist, http://connection.ebscohost.com/c/book-reviews/85827082/best-kept-secret Kirkus. http://online.wsj.com/news/articles/SB119706713012717620 WSJ (one paragraph). Enough info in the reviews to write article content. Seems to pass 
Stance: keep
Cited policy: Wikipedia:Notability (WP:NBOOK)