The caster may create an area of soft and marshy ground up to 48 yards away. This spell can only be cast out of doors, on areas of bare ground; it has no effect on rock or stone.
The bog covers an area of up to 48 square yards and counts as difficult ground. It lasts for 3 turns before drying out and hardening back to normal ground. Any creature in the mire when it hardens will become trapped unless it makes a successful test against S. Trapped creatures count as prone targets and need to be dug out before they can move again.