The Lorestone of Varetta
(1993)(The tenth book in the Legends of Lone Wolf series)
A non fiction book by Joe Dever and John Grant
To help restore the order of the Kai, Lone Wolf is seeking the lost Lorestone of Varetta. But the trail of ancient clues that should lead him to the treasure also leads into hostile lands, full of treachery, intrigue and war.
Used availability for Joe Dever's The Lorestone of Varetta