The Rostomily Brotherhood

"Un-Man."

Two Brothers unmask to Barney Rosenberg and intend to tell him that they are identical twins but Rosenberg recognizes Stefan Rostomily. At last we know that the Brothers are clones and whose clones they are. Identical agents provide alibis for each other and create the legend of an unkillable superman. Other Brothers are disguised but all bear Rostomily's superior qualities that had made Fourre have him cloned, a concept that warrants more than a single story - but Poul Anderson always moved on to other ideas. Next, we will have the Sensitive Man (another kind of "superman"), an Un-man overthrowing a dictatorship on Venus and some major social changes on Earth - "into futurity," as the Time Traveller said.