Download or read book The Door Into Summer written by Robert Anson Heinlein and published by Del Rey. This book was released on 1957 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dan Davis was tricked by an unscrupulous business partner and a greedy fiancee into spending thirty years in suspended animation just when he was on the verge of a success beyond his wildest dreams. But when he awoke in the future, he discovered he had the means to travel back in time -- and get his revenge!