Earth Glide
Earth glide allows you to move through solid natural earth and unworked stone as easily as walking on the surface. This includes rock, soil, clay, and natural mineral formations. You move at your full earth glide speed through such materials.
While earth gliding, you can see through earth and stone as though it were translucent (out to a range equal to your earth glide speed in squares). You have total cover and total concealment from creatures not in the earth.
Unlike burrowing, earth glide leaves no tunnel behind you — the material flows around you and closes seamlessly. You can end your movement inside solid earth without penalty and remain there indefinitely. You do not need to breathe while inside earth or stone.
Earth glide does not allow you to pass through worked stone (walls, foundations, bricks), metal, wood, or other non-natural materials. A thin layer of worked stone (such as a stone floor over natural bedrock) blocks earth glide at that layer.
If the earth or stone you occupy is somehow destroyed or transmuted while you are inside it, you are shunted to the nearest open space and take medium damage.