[Elsa had wandered towards the outskirts of the forest, because, as affected as she is by the general mood as everyone else, being around people doesn't seem like the best idea...
She also has no idea about the nature of the negative energy trees and ends up standing not too far away from one, watching it with her arms uneasily crossed. It's... kind of beautiful?
When she notices Porthos coming out of the forest she jumps slightly, surprised.]