Jim and company. Sandmirks Matriarchal, rodentine creatures that impel terror in their intended victims by production of high-frequency sound. These sounds have no effect on wolves, but take full effect on dragons and men alike. Harpies Flying creatures resembling those of classic mythology, whose bites contain lethal venom. Worm A large, mainly-featureless creature with thick skin and many rows of teeth. Defeated by Jim and Brian. Ogre A large, dim-witted, fireproof humanoid noted for impressive gripping power but limited movement at the shoulder. Smrgol and Jim/Gorbash are among a very few dragons to have slain one. Sea-Lizard or Sea-Serpent An amphibious reptile of tremendous size, considered traditional enemy of the dragons. One of these, by magical intervention, leads an invasion (in The Dragon at War) of England to destroy the dragons of England, but fails when fought and beaten by Jim Eckert. Granfer A Kraken, initially depicted as benign advisor to all marine and amphibious life; but later revealed to be ambitious, according to Carolinus, "to rule the world". It is Granfer that permits a large-scale invasion of England by the sea-serpents, and who connects them to the Italio-French sorcerer Julio Ecotti for this purpose. Banished by Carolinus. Ahriman A 'Great Demon', antagonist of The Dragon and the Djinn. Deep-Earth Goblins Antagonists of The Dragon and the Fair Maid of Kent, wherein they appear as a cause of the Black Death's proliferation in England, well before the accepted historic date. Especial enemies of the Castle Hobgoblins, whom they expelled from the 'Kingdom of Demons' centuries before the events of the books. Other characters Grottwold Weimar Hansen University professor of various qualifications, whose experiments in astral projection transported Angie, and later the psyche and memories of Jim, into the medieval period. Considered "an unsavory character" by Jim, owing to their former rivalry for Angie's hand in marriage. Jim's instructor in hypnosis. Dick Innkeeper Owner of an inn, of moderate importance to the first book. Son Won Phon Chinese Magickian, who appears initially in The Dragon at War to challenge Jim's use of hypnosis on grounds that the latter was "Oriental magic" and ought have been taught by "a qualified Oriental instructor". Disproven by Carolinus. Son later appears as a specialist consulted by Carolinus, and in extension thereof by Jim. Martti Lahti Finnish magician, of a moderate rank (identified as 'B+') slightly higher than that of Jim, who appears among those observing