Dr. Cressada nodded. “But, by the time we get back to the lab, get all the results, re-check and re-verify them, and then get back here again to follow up . . . whatever's in the box might give us more clues as to what we might find here. Let's suppose that whoever was here just before us were the ones who left it. We were close enough that we found their campfire and their footprints.”