David Franklin Powell

• The Wolf-Men: A Tale of Amazing Adventure in the Under-World

  David Franklin Powell
• 20 Sci-Fi Adventure Novels

  David Franklin Powell
• In Search of the Great Unknown: 20 Science-Fiction Adventures

  David Franklin Powell
• 20+ Vintage Sci-Fi Novels

  David Franklin Powell
• In the Dawn of Science Fiction: 22 Groundbreaking Novels

  David Franklin Powell
• The Forgotten Civilizations: 20 Lost World Novels

  David Franklin Powell
• The Book of Monsters: 40 Timeless Horror Novels

  David Franklin Powell
• The Beasts of Nightmares: 40 Monster Books

  David Franklin Powell
• 20 Lost World Classics

  David Franklin Powell