Answer:
He found the enemy lying under the tree that was killed by their fieldpiece.
Explanation:
1)when the explorers travel they have something to look at
2)they can do some historical research on them
3)that they had some attacks and the fort was used as a defend its position
These are some that you could use i strongly suggest you use the third one
Hope this helps:)
What exactly do u need help with???? i dont see a question.