In the fall of 1987, one last adventure begins,” shares a new teaser for Stranger Things‘ final season. If that sounds ominous, we feel like it’s because it is.

While most of the Stranger Things Season 5 titles are vague but straightforward, Episode 6’s “Escape From Camaztoz” gave me pause. A quick Google search of the world led me to an article about an anthropomorphic leaf-nosed bat that played a role in sacrificial rituals in Mayan culture.