By Andre Norton
When the Yurth colony ship touched down on a new planet, it mistakenly landed in the middle of a small city, destroying most of the city and killing many of the native residents, the Raski. For which destruction neither the Raski nor the Yurth descendants themselves will forget or forgive. So the two populations live separate from each other, not at war but not a peace either. The native Raski occupy the arid lowlands and the alien Yurth make their homes in the mountains.
When a Yurth youth enters adulthood, they traditionally take a journey into the valley of the destroyed Raski city to learn and understand why the Raski hate Yurth people so very much. This story concerns a young Yurth woman, Elossa, who undertakes her pilgrimage only to find her path being crossed by a Raski youth, Stans of Philbur.
It is known among the Yurth that sometimes Yurth folks on pilgrimage never return home. What happens to them is not known. Having Stans on her trail alarms Elossa and she fears his intentions. They end up travelling together but never quite trusting each other as some mysterious force seems at times to be in control of their actions, much against their wishes.
Arriving at the Mouth of Atturn, a place Stans declares sacred to the Raski, they venture into an underground maze where both young people experience strange episodes and disturbing visions or illusions. As they penetrate deeper into the maze, they are abruptly confronted by a vision of Attun, a Raski god of evil, who attempts but fails to kill Stans. Upon finding their way out, they are again attacked by the one who bears the face of Attun, who once again fails to kill Stans, due again to Elossa's quick interference. But two successes are followed by failure when Elossa and Stans are overwhelmed by the Attun lookalike's hideous, deformed minions and captured and bound and sent down the river.
This was an OK read. It never really grabbed my attention though. I think I have read too many of these Norton stories which seem to be the same story told over and over with a few changes made. Two young people find each other and end up traveling over empty lands inhabited by dangerous beasts, with part of the journey taking place in an underground maze of tunnels and caverns. And some kind of unnatural, deformed creatures working against them. And an old city and old technology always part of the journey. Plus the ever present mind powers that are a standard feature of a Norton story and a magical talisman or piece of jewelry. Formulaic, for sure.