The Door into Summer by Robert Heinlein

The Door into Summer

by Robert Heinlein

Pan Books, 1970, ISBN 0330025163, paperback

Very Good Condition, a little edge and shelf wear, a little rubbing to edges and corners, no inscriptions (see photographs)

"His inventions stolen by a double-crossing business partner and a two-timing fiancee, Dan Davis decides to leave a life suddenly turned sour.
Using the long Sleep he wakes up in the year 2000.
To begin with, everything seems fine in the 21st century, but why are his old robots now mass produced and marketed under his own name?
To find out, Dan must bluff his way on a space jump - back to where it all began ... "