📕 The four stories collected in this book were written by two sons and a daughter-in-law of Tarzan creator, Edgar Rice Burroughs. John Coleman Burroughs and Jane Ralston Burroughs wrote "Hybrid of Horror". John Coleman and his brother Hulbert wrote "The Man Without a World", "The Lightning Men", and "The Bottom of the World". Fully illustrated with the original artwork from the pulp magazines Thrilling Mystery, Thrilling Wonder Stories, and Startling Stories.