Alien Impact (Paperback) (ISBN-13: 9781479470150)

On Venus, tension exists between the native Venusians, Earth colonists, and half-breeds. One of the latter, Jim Warren, seeks to prove his theory that both races must have sprang from a common stock, a mysterious Elder Race. But he finds himself ostracized by Earthmen-and an outcast from his own people!

Introduction by Philip Harbottle