First sighted from the air in 1949, during a routine cartographic pass over the southern volcanic corridor. The pilot, Aldous Renn, logged what he described as “shadows with no ground beneath them” before turning for base. A second flight confirmed a cluster of landmasses suspended above the basin.
The sighting was filed as instrument error and shelved for nearly twenty years. In 1968 a ground party led by Dr. Mira Sol reached the shelf on foot and confirmed the isles were physical, stable, and inhabited by wildlife — prompting a permanent observation outpost along the basin’s northern rim, raised that same season.
Classification
Geothermal Anomaly
Isles Counted
7 discrete landmasses
Max Elevation
~200m above basin
Basin Temperature
70–110°C surface
Vegetation
Mature canopy, roots intact
Wildlife
Avian, small mammals
Structural Supports
None identified
All seven isles hold their original elevation and position to within a single metre, across four decades of continuous measurement. The basin floor beneath them has proven far less dependable.
Two new lava channels have opened since 1968, and sulphur output has risen by an estimated thirty percent. Three of the original observation posts now stand abandoned to toxic gas at ground level. The isles themselves remain inert, temperate, and undisturbed. Birdsong has been reported from the largest by every survey team since the first ground expedition.