AmberlightSylvia Kelso2007

Tellurith, the head of a great ruling House in Amberlight, inexplicably finds a battered outlander left for dead in the streets of the legendary city — and an oracle reveals that he must not die.
The man, although stripped of his memory, may know of a threat to Amberlight's unique possession: the motherlodes of the qherrique, the pearl-rock that gives their world its most powerful tool.

Tangled in intrigue, insurrection and brutal warfare, it will take a cataclysmic upheaval for Tellurith and the stranger to begin to grasp the more-than-human mystery that brought them together.

Titre original : Amberlight (2007)