Reliquary of Safe Passage

A palm-sized bronze reliquary shaped like a tiny lantern buoy, its curved sides engraved with waves, knotwork, and tiny compass roses. The top cap is capped with pale abalone shell, and a loop of blue sailcloth is tied through its ring so it can be worn at the belt or hung from a mast. When opened, the reliquary holds a single glassy bead of seawater that never spills, even when the container is inverted. The bead glows softly with a green-blue light whenever safe harbor or a protected route lies ahead.