STORM OVER WARLOCK (Ace #78741).
Andre Norton, Ace Books, Inc., New York, 1960.
 
Science Fiction
ISBN:  0441061095
Vintage from the 1960s
 
Stranded on the alien world of Warlock, Shann Lantree's expedition camp has been wiped out by the Throgs, beings so alien that humans have yet to communicate with them. Lantree must quickly learn how to survive under harsh conditions while being chased by the Throgs -- and how to distinguish the real from the dreamed when he meets the mysterious Wyverns.
 
Secure binding with clean pages and a bottom spine shift with a light tear. Softcover book with 192 pages.