A Flying Stone is a flying device used by drows on Caledonia to soar through the skies of their planet. It resembles a massive rectangular slab of stone but is imbued with magic to allow it to fly. They come in a variety of sizes, allowing different numbers of people to ride each one.
Each flying stone comes in its own size, from huge slabs for many people to mere flying paving stones[Pan 1]. The stones have runes carved into them but otherwise appear as any normal, grey stone[Pan 2].
Flying Stones are meant for flight across the planet Caledonia and are capable of carrying various numbers of people, depending on the size of each stone. They are guided by a single drow's thoughts[Pan 1].