"You are correct, we need to be quiet to avoid further detection. We don't know what or who might be out there. That is why we need to rest, recover strength, and get our team back together."
After the first hour, Thunder is feeling much more refreshed, just a bit longer and he'll be back at full strength.
"The spirits I sent out are still searching for him. They will report to me when they locate him, alive or not. We need to have patience. We will know if he is alive soon enough. And as for tracking him down the traditional way, you can go if you wish. You'll be taking this infernal machine with you, or leaving it with me, either of which is a terrible option."
Thunder does, however, think that cleansing the site is a good idea. After feeling refreshed, he switches to astral perception and quietly walks the area, being as slow and careful as possible. He eliminates all the signatures that were left behind on both the bodies and on the ground and trees.