Fifth Planet Author:Fred Hoyle An entire solar system, sun and planets, is hurtling toward our own. There is an earth-like planet and both the Americans and the Russians decide to send a ship to land on the planet they've named Achilles to explore it. The Russian ship cannot take off to come home so the crews collaborate. By the time they leave Achilles, 3 of the combined cre... more »w are dead and 2 others are insane because of strange incidents on the planet. When they return home it turns out one of the men was being inhabited by a creature from Achilles. The creature passes into another person and begins to do its own exploring of Earth.« less