Prisoner of Time (Perry Rhodan #56) By Clark Darlton Books / Paperback Publisher: Ace Books, October 1974 Price $5.53 Free Shipping Send to a friend Collectible - Very Good New York: Ace Books, 1974 Book 56. 16mo mass market paperback. Very Good book. Inquire if you need further information. $5.53 1 in Stock at Warehouse Quantity Add Free Shipping to continental U.S. OR $1.00 per item discount if shipped to store.