The Glasswake Observatory

• Rotating brass astrolabe suspended over a mosaic floor
• Cracked glass dome that opens with a hand-crank
• Stone hearth bearing dozens of carved visitor marks

• Mira Voss, an impartial astronomer who maintains the instruments
• A flock of silent silver moths attracted to magical effects

• The lower chamber contains a dormant portal that activates during eclipses
• Mira secretly alters forecasts to keep rival factions from discovering one another
• One star visible through the dome is actually an observing eye

• A crystal lens worth 250 gp
• Three scrolls predicting rare celestial events
• A brass compass that points toward the nearest planar breach

The observatory once charted magical weather and planar disturbances; its instruments still function, though their readings are increasingly unreliable. Travelers use the sealed lower chamber as neutral ground when storms make the mountain pass impassable.

Mira offers shelter and information, but asks the party to investigate a new star that has appeared inside the observatory's charts.

A half-sunken dome of blue glass crowns the barren ridge, its panels reflecting stars that are not in the sky. Inside, brass instruments tick softly while cold wind circles through the cracked walls.