The Metalwood Saga / Reference Guide

Full-series spoilers

Telperion

Telperion is one of the legendary Twin Trees of elven religion, appearing as a "towering" and "ghostly white" cypress Tree that stands thousands of feet tall. It emits a "mystical blue glow" and is often depicted in stained glass and ancient iconography as being entwined with its golden counterpart, Laurelin. When found in the hidden city of Atlantis, the Tree's appearance shifts, becoming a "radiant" gold that shines "like the sun" as it releases the soul trapped within its branches. Though revered as a god, the Twins themselves later reveal that the "magic" associated with the Tree was actually a technological invention of their people.