cz Blake A. Hoena grew up in central Wisconsin, where he wrote stories about robots conquering the moon and trolls lumbering around the woods behind his parents house. He now lives in Minnesota and enjoys writing about fun things like history, space aliens, and superheroes. Blake has written more than fifty chapter books and dozens of graphic novels for children. Silvio dB is a comic book artist from Brazil. He has illustrated numerous graphic novels for Capstone, including Cleansing the World: Flood Myths Around the World, Vikings: Scandinavia's Ferocious Sea Raiders, Ninjas: Japan's Stealthy Secret Agents, and Nat Turner's Rebellion.