GM: It looks like you could work around the edge of the glade, though it would take some time, 20 minutes or so.
Keena listens to the faint barking, it sounds to her like hunting hounds, a long way off - maybe 200-300 yards.
Suddenly a wild boar bursts out of the grass in front of you, not 20' away! Keena sees that it's wounded in the hindquarters, its red eyes glazed with fear. A shiny ring is through its nose. In panic it lowers its head to charge you...
(actions PCs - you can attack it, use skills, try to flee etc)