[The current dig site was in the midst of a vast spread of old excavations. Whole buildings unearthed, empty, ancient. Desolate streets. An abandoned and dead city, like Pompeii. As Belloq takes Una through the ruins, he points out items of interest here and there.]

You see the carvings above the lintels of some of the buildings, the death's head and archer's bow. We thought it was merely symbolic before, until skeletons armed with bows and arrows attacked the village a few months back. The carvings are probably apotropaic. "We respect you, now go away from my home." Or possibly invoking the creatures as guardians. "Do not rob me or may the skeletal archers get you."