Dag, a Lakewalker patroller with a dry wit, is dedicated to destroying the evil "malices" that blight the countryside. Fawn, a runaway farm girl, helps him kill a malice and its zombie-like mud-men, but not before the malice destroys her unborn child by taking its "ground" or life force. Fawn slays the malice with Dag's sharing knife, a bone blade created to carry the spirit of a dying patroller, but Dag's formerly empty knife now carries the baby's ground. Dag and Fawn fall in love while he helps her recover from her miscarriage.