This ACE Double paperback features These Savage Futurians by Philip E. High and The Double Invaders by John Rackham, two thrilling science fiction novellas in one volume. These Savage Futurians explores a futuristic society on the brink of chaos, while The Double Invaders tells the story of an alien invasion with unexpected twists. The book is in good condition, showing typical shelf wear, some page toning, and a crease on the corner of the front cover. A great collectible for fans of vintage science fiction.