Twenty-three short stories for cryptozoology enthusiasts, with strange creatures and beasts from the past, from mammoths to giant snakes, cave dwellers to sky beasts. Stories include:
- The Jheen (1893, Charles L. Hildreth)
- In the Avu Observatory (1894, H. G. Wells)
- Æpyornis Island (1894, Wells)
- The Fiend of the Cooperage (1897, Arthur Conan Doyle)
- The Brazilian Cat (1898, Conan Doyle)
- The Killing of the Mammoth (1899, H. Tukeman)
- The Spell of the Bird (1900, Frank Aubrey)
- A Relic of the Pliocene (1901, Jack London)
- The Monarch of St. Elias (1901, Frank L. Pollock)
- The Great White Serpent of the Malorli (1902, Alexander Ricketts)
- Alfred Jenkins and the Didi (1903, Anonymous)
- The Gregosaur of Black Lake (1905, Julien Josephson)
- The Death-Trap (1908, George Daulton)
- Last of the Race (1910, William Fryer Harvey)
- The Air Serpent (1911, Will A. Page)
- The Terror of Blue John Gap (1912, Conan Doyle)
- The Horror of the Heights (1913, Conan Doyle)
- The Humming Bats (1914, Wilder Anthony)
- The Devil's Fish (1914, Frederick Simpich)
- An Alaskan Monster (1915, Charles E. Howard)
- The Last Egg of the Great Auk (1920, Bernard Sexton)
- The Shame Of Gold (1922, Charles J. Finger)
- An Undiscovered "Isle in the Far Sea" (1926, Charles Loring Jackson).
