Gnostic writings contain descriptions of alien predators called Archons, Arkontai in Greek. The texts from Nag Hammadi describe them as heavy, elusive, shadowy creatures. The most common name for them is “beings of the likeness, shadow-creatures.” Could the Archons be compared to the “mud shadows” described by don Juan? This question raises the general issue of parallels between don Juan’s Central American Toltec shamanism and the shamanism of the Mystery Schools of ancient Europe.