Unfortunately, the party cannot find any trails worth tracking, as it appears these jungle elves were quite intelligent about covering their tracks. With no other recourse and rather than wander aimlessly in the jungle, the party returns to the camp.
The party receives some accolades from the civilians at the camp, even though it is frowned upon by the mercenaries, for their role in driving off the elves. You continue on with your duties for the day. The dead elf's decomposing head is removed from his body and placed with the other heads to scare off the attackers.
At night, after sharing a meal, where you again receive supportive glances from the civilians, you retire to your rooms.