Captain Peña asks Mondragón to solve the case of the ritual killer within 24 hours or he will remove her from the case. Casasola discovers a grotto, where he finds a lair with the five missing heads of the ritual killer's decapitated victims.

Captain Peña is forced to ask Mondragón for her temporary resignation. Elisa notes that the penultimate omen of the Florentine Codex has been fulfilled. The only thing missing is that of "a mother who cries" in allusion to the myth of La Llorona.