Armchair Fiction presents extra large paperback editions of classic science fiction double novels. The first novel, "The Metal Doom," is a grand sci-fi adventure by venerable sci-fi author, David H. Keller, M. D. Imagine a world without metal When all the metal was gone, the civilized world ended. People like the Tublers and John Stafford started the slow rebuilding of society—a job made difficult enough by the lack of metal tools and weapons. But there were others trapped in the “new” stone age—roving bands of marauders who relished the new barbarism and whose only drive was to steal or destroy.