The Last Unicorn by Peter S. Beagle 1 January 1968 by librarian 0 “The Last Unicorn” by Peter S. Beagle. Title: The Last Unicorn Author: Peter S. Beagle Cover Artist: Darrell K. Sweet Language: English Original Publisher: Viking Press Originally Published: 1968 Publisher: Del Rey Published: February 1969 ISBN-10: 034532384X ISBN-13: 9780345323842