Eilthirri (Ayl-theer-ree)
Extra-Terrestrial
The Eilthirri arrive not with conquest, but with wonder. They descend in silence or rise from starlit pools, bearing with them the long breath of galaxies. Their forms shimmer with alien elegance—some near to human, others far removed—and their presence feels like standing beneath an unfamiliar constellation. They are not from here, but they do not feel entirely foreign either.
They move with grace that suggests a different gravity, a rhythm attuned to orbital dances and magnetic tides. When they speak, it may be with voice, gesture, scent, or something subtler still. Theirs is a language shaped by distant suns and ancient exchanges. Yet when they pause to listen—truly listen—there is no mistaking their intent: they are here to learn, to witness, and sometimes, to heal.
Though solitary by circumstance, many Eilthirri form alliances with native peoples, drawn by curiosity, empathy, or shared vision. They are often found at the edges of things—libraries, observatories, waystations—where knowledge flows and silence is honored. Few seek leadership, yet others gather to them naturally, recognizing the stability and clarity they bring. In their own cultures, hierarchy may be irrelevant or incomprehensible.
Physically, they are diverse: limber, crystalline, plated, or fluid in motion. No single shape defines them. They alter themselves to suit new worlds, new climates, or the comfort of those they meet. Even their expressions may shift—eye patterns blooming across skin, pulses of bioluminescence conveying thought. Each one is a living language of the cosmos, and to understand them is to understand that difference is not deviation, but design.
Eilthirri speak often of stars that sing, seas that rise into clouds, and cities built in zero-g harmony. Their stories do not begin with "once upon a time," but with equations, visions, and poetic maps of memory. Yet they honor myths, too—theirs and others’—seeing them not as lies, but as essential truths in symbolic form.
Wherever they go, Eilthirri leave behind ripples—not disruption, but transformation. Crops flourish where they pass, ideas blossom, and people wonder a little more than before. They are not saviors, not invaders. They are guests from the long dark between stars, bringing a mirror that reflects what might yet be possible.
Aetherkin
Basic Information
Anatomy
Humanoid is a generalization. While most Eilthirri possess bilateral symmetry and upright posture, the specifics can vary wildly: gill-flares in the throat, secondary sensory crests, limbs that divide and reform. Organs are often multi-functional or biologically unique—pulsing nodes that produce sound and thought, skin that filters atmosphere. Many have no skeletons in the traditional sense, relying on internal fields or semi-fluid support. A few retain ancestral traits from aquatic, arboreal, or zero-gravity environments.
Biological Traits
What unites the Eilthirri is adaptability. Their bodies can adjust to oxygen scarcity, radiation spikes, or shifts in planetary pressure. Many possess internal bioreactors for energy processing, eliminating the need for food or sleep in conventional terms. Healing is accelerated, though rarely instantaneous, and their immune systems often incorporate synthetic or symbiotic elements. Cognitive speed is high; emotional affect is deeply contextual. They survive—and thrive—not in spite of variance, but because of it.
Behaviour
Above all else, the Eilthirri are observers and connectors. They may appear aloof at first, their emotions unfamiliar in cadence or display. But they are capable of deep empathy, often expressed in nonverbal ways. They record obsessively—not just facts, but art, music, behavior patterns. Some Eilthirri adopt mimicry as a courtesy; others hold firm to alien customs even in foreign lands. When they commit to a bond or purpose, they do so with precision and longevity—often spanning generations of those around them.
Additional Information
Facial characteristics
Eilthirri faces may range from hauntingly beautiful to geometrically unnerving. Some have multiple sets of eyes arranged in radial arrays; others lack mouths, instead communicating through subtle shifts in coloration or ultrasonic frequencies. Expressions may involve the flutter of throat-lanterns or the dilation of iris-like patterns across the cheeks. What appears fixed can become fluid. Those who spend time among humans often soften their visages, but always with a subtle hint of their true design shimmering beneath the surface.
Perception and Sensory Capabilities
Their senses are tailored to worlds of different suns. Some Eilthirri see ultraviolet spectrums or infrared trails. Others hear magnetic harmonics or feel gravitational nuance like a tingling on the skin. A few possess forms of synesthesia that map emotion as color or truth as temperature. Many can detect subtle shifts in energy or atmospheric mood. Telepathic variants exist, though communication is typically empathic rather than verbal. Time itself is sometimes experienced differently—less linear, more rhythmic, like tides.
Civilization and Culture
Common Myths and Legends
Across Earth’s myths, Eilthirri analogues abound. They are the sky people of Mesoamerican codices, the star beings of Aboriginal Dreamtime, the shining ones of Sumerian tablets, the watchers and pale visitors of countless contact tales. Some cultures speak of them as creators, others as wayfarers between worlds. In Tir na nÓg, they are seen not as invaders or saviors, but as reminders—that life elsewhere flourishes, and that wisdom is not always born of earth and blood, but sometimes of star and silence.
Genetic Ancestor(s)
Scientific Name
Neacha; Sidheánach; Transitus eilthirri
Origin/Ancestry
Originating from various planets beyond Earth, their ancestry includes rich histories and cultures that are often vastly different from human societies.
Average Height
Varies widely, typically between 4 to 8 feet depending on their species.
Average Weight
Varies depending on their anatomy and homeworld gravity, often between 80 to 300 pounds.
Average Physique
There is no singular body shape that defines the Eilthirri. Some are tall and willowy, with limbs that bend more than expected. Others are compact and agile, adapted for higher gravity or subterranean life. Their musculature may not correspond to human norms, often concealed beneath smooth exoskin, luminous membranes, or flexible plating. Movement varies: gliding, pulsing, even suspending weight as if swimming through atmosphere. Each form reflects the demands of a world far from our own.
Body Tint, Colouring and Marking
Eilthirri skin comes in shades foreign to Earth—lavenders that pulse like nebulae, matte greens that shift in warmth, polished silver threaded with sapphire veins. Some display vivid markings resembling fractals, star-charts, or scriptive sigils. These patterns may shift with emotion or act as social identifiers. Others feature smooth gradients of color that ripple with breath. In all cases, pigmentation is never random; it tells a story of origin, adaptation, and inner resonance.
