Demor, or Denior, is a demon mentioned in the Munich Manual who can cause hallucinations and delusions and make massive castles appear. When summoning him, conjurers venture to a covert location where they offer him milk and honey.
Maitor is a demon of deception and illusion who can be called upon in a spell to make one invisible. He serves under the demon Almiras and their minister Cheros. Image: Eve Harms
The Aspidochelone is creature, found in medieval bestiaries, that appears to be an island with trees, dunes, and rocky crevices—but is in reality a giant whale, sea turtle, or other sea monster. Sailors who unwittingly explored the ‘island’ found their ships and themselves in peril. Image: JaniceDuke