Keith Laumer. Used, good condition.
A classic pulp space adventure
From the ruins of Stonehenge to the starships of Vallon he sought the secret of a trace of memory. When the man named Legion signed on as a soldier of fortune, he did not expect to end up as the master of a private island, nor to cower in ancient druid pits, nor fight for his life in the great hall of Okk-Hamiloth on a planet galaxies away.
Keith Laumer, the master storyteller of interstellar adventure, sweeps you through time and space in this epic novel of retribution.