If the target of this spell fails its Fortitude save, areas of earth and stone floor act as a snapping quagmire that pulls the target down and damages it if it attempts to move through such terrain. If the target is a creature, it treats all areas of earth and stone it moves through as difficult terrain. Furthermore, for each 5 feet a creature moves through such areas, it takes 1d6 points of damage. Creatures with a burrow speed or the earth glide ability are unaffected by _binding earth_. If cast on an unattended object resting on an area of stone or earth, the stone or earth warps and wraps around it, pulling it firmly to the ground. A DC 15 Strength check is required to pull the object free from snapping earth or stone.