"How costly do you think this mistake is?"
"Costlier enough to probably get him caught. When natural objects are used as the nodes, they would be drawn with all kinds of inscriptions and they would always leave a residual trace of the rune used for the inscription.
Most of the time the trees would be destroyed.
The other party must have wanted to make sure that we didn't feel any suspicions because of the tree locations which would be noticed too much if they are destroyed, after all that is a big giveaway.
But the other party didn't expect my presence here, I don't need some other extra clues to think of the position of the trees and what kind of formations he might have used. So, I just checked the few plausible trees and finally I got the trees rounded up and checking the residual traces of the runes, although difficult, is actually very easy for me.