The Ocularis Infernum (in Latin: "The Eye of Hell") is a powerful and omniscient, supernatural object that is written in the Arcanum tome as the driving goal of the mythical Black Zodiac discovered by the demonically-possessed astrologer Basileus in the 1400s A.D. It plays a major antagonistic role in the 2001 supernatural horror movie Thirteen Ghosts (also known as Thir13en Ghosts).