Sempterian

Sempterian is a fictional species originating from the planet Xylos in the fictional universe of "Chronicles of Aethelgard". These beings are characterized by their distinct crystalline biology, which allows them to absorb and metabolize ambient energy sources, primarily light and geothermal heat. Physically, Sempterians appear as tall, slender humanoids with multifaceted, translucent skin that shifts in hue depending on their energy reserves and emotional state. Their skeletal structure is composed of a silicate-based material, making them exceptionally durable. They possess a unique form of communication that involves emitting modulated light pulses and subtle sonic vibrations, often perceived as melodic hums by other species. Sempterians are known for their long lifespans, measured in millennia, and their philosophical inclination towards understanding the fundamental energies of the universe. Their society on Xylos is highly structured, with an emphasis on communal harmony and the pursuit of knowledge. They have a complex relationship with technology, preferring to integrate it seamlessly with their natural abilities rather than developing external devices. Their primary societal role is that of custodians of ancient Xylosian lore and guardians of energy nexus points across their homeworld.