Very Rare · Astrolabe, Arcane Focus (wondrous item) · AttunementIts story
A palm-sized astrolabe of pale brass, its nested rings turning around a frost-clear crystal that holds a faint amber glow. Tiny marks trace routes like constellations across its surface. When its rings move, they whisper against one another like ice over deep water, and the crystal warms beneath the hand.
Lore
Among the Frostmelt Archipelago's route-keepers, the astrolabe is remembered as a tool for listening to the world's buried harmonies. Its rings are said to follow ley-lines as faithfully as a beacon follows a channel, though no surviving account explains who first taught it to sing.
History
Frostmelt navigators tell of a Ley-Singer who tuned the astrolabe to the hidden currents beneath ice and sea. It passed between spellcasters who charted safe routes through places where heat, distance, and planar boundaries behaved strangely. Its original maker and the full purpose of its design remain uncertain.