Voyagers

"Stoner knew. The fiery object hurtling toward the Earth was an alien spacecraft. But the world might never know. He was trapped in an iron cordon of secrecy, for the discovery had shattered the world power balance, setting off a brutal struggle for supremacy that raged from the sacred halls of the Vatican to the corridors of the Kremlin and the Pentagon. The forces of fear and treachery would use any weapon at their command, from mind war to sabotage, to keep the world in darkness. Aided by a brilliant Soviet linguist and a lovely young student, Stoner planned a desperate mission, a wild, heart-stopping gamble to preserve the legacy of the star voyager for all mankind." -- Amazon.com.