It would be easy to blame Indiana Jones. I saw Raiders of the Lost Ark in the movie theater five times upon its initial release, and I’ve viewed it dozens of times since then, introducing my children to the dangers and joys of action-archaeology. But to suggest that my interest in digging up the past—or more accurately, digging into the past and uncovering ancient terrors best left buried—didn’t start with Harrison Ford. The motif is broader than that, and goes back much earlier. Was it the dreadful 1956 film The Mole People, in which scientists find a lost, underground city of mutant creatures?