Paul Frederick Ernst (born between 1899 and 1902 - died between 1983 and 1985) was an American pulp fiction writer. He is best known as the author of the original 24 "Avenger" novels, published by Street and Smith Publications under the house name Kenneth Robeson. In this book: The Radiant Shell The Planetoid of Peril The Raid on the Termites Mask of Death The Red Hell of Jupiter World Behind the Moon