"They are its hands. Its mouth"

[ They weren't experiments. Perhaps they were pilgrims, sent out to find the mythic Grail so to speak. ]

It seems like they were people here before us. Wearing the same clothes.

[ His expression is vaguely troubled. The idea of being hailed as godly or even a savior comes with a fear that Clark has buried since coming here. ]

They mention a treasure and that they helped them in some way on their . . . quest.