- Body plan
- A floating bell of silver-blue membranes with radial sensory streamers, housed in a white axial frame with quiet magnetic manipulators.
- Senses
- Air pressure, trace chemistry, magnetic fields, distant vibration, and minute probability shifts inferred from continuous environmental sampling.
- Life cycle
- Adults exchange veils to seed a child cloud. Juveniles spend decades in shared prediction chambers before selecting a private reliquary.
- Native environment
- A dense high-altitude atmosphere with stable jet streams and vast airborne microbial gardens.
- Social unit
- The forecast cell, a lifelong group responsible for one another's risk estimates and emotional regulation.
- Notable trait
- Strong emotion changes buoyancy. Uncontained grief can literally send an Ilyr into the ceiling.
- Homeworld
- Halcyon. A sterile irradiated world surrounded by orbital memorials and automated weather archives.
- Founding event
- The Stillness Vow transformed the evacuation command into a permanent order of prediction, custody, and preemptive intervention.
- Historical wound
- Their flawless solar forecast could not solve the political choice of who received limited evacuation space.
- Current aim
- Create a monitored buffer of stable systems where extinction risks are detected early and neutralized before local governments can bargain with them.