Darkover’s most puzzling riddles lay in the incredibly high mountains known as the Hellers – jagged, almost impassable peaks that have sheltered races and enigmas that are legends in the outside world…the howling inhuman Ya-men, the deadly Ghost Wind, the fiefs of barbaric brigand chieftain, decaying Dry-towns and the eerie forces that were worshipped as gods.  Dan Barron was a rational, efficient member of the Terran Spaceforce, until nightmare visions drove him from the safety of the Trade City into the unmapped heart of the Darkovan mountains.