David felt a sliver of regret for sacrificing his comrade to ambush the archer. Not for the man's death, but for his own failure to make it count. After tossing the wounded archer a healing potion, he had hidden in a tree twenty meters away, granting him a perfect line of sight.
In other words, he had used his own ally as bait.
The enemy archer clearly had some kind of perception skill, or at least something that achieved the same effect—a way