Floatstone rock that has been infused with magic that makes it levitate , leaving floating islands to tear free of the earth as they become enchanted thus . Trees which grow on these islands draw the magic into their wood becoming Soarwood neutrally buoyant in air but as hard as oak used to make airships . This wood has existed in previous editions and source books , IIRC , so doesn ' t count only it ' s method of productionThe process of creating this rock , filled with tiny purple crystals making it look almost like a purplegrey granite is something my players have not yet encountered . well , they ' ve not noticed the cause yet . <| sep |> I ' m pretty sure this depends on the person . If I stop moving my legs , they ' ll start sinking . Once I ' m vertical , only my forehead stays up .