3 classic alien novels by John W. Campbell Memorial Award-Winner Barry N. Malzberg!SCOP is doing his job. He has spoken to President Kennedy, warning him to leave Dallas immediately; spoken to Zapruder, asking him not to take pictures. He has pleaded with Elaine Kozciouskos, begging her only to scream, has even slept with her - part of the job. In spite of the pain, he has witnessed, on location, the last minutes of Jack Kennedy, Martin Luther King, Jr., Malcolm X, and Robert Kennedy - all for the fate of manking. But bitterly, he knows he is a failure. For Scop, in trying to alter the future, has merely reinforced it.IN THE ENCLOSURE, escape is all that Quir thinks about. Escape from the endless interrogations that have followed the first meeting of creatures from space within the people of Earth. Quir's memories have been burned out. All he knows is that he must give scientific data to humans whenever they ask for it.For those arriving ON A PLANET ALIEN, the mission was educate the native inhabitants of Folsom's planet and bring them within the Federation. But Commander Hans Folsom was worried. Something had happened on the voyage, but he could not remember what. A runic stone he had found on the planet seemed to have a power of its own. And now messages from Earth were becoming meaningless. Then there was the crew. Were they educating the natives correctly, or were they traitors? Or was Commander Folsom going mad? Could it be that some unknown force was controlling his mind - a force that could bring disaster to the mission?