The Vanishing Man

Popular novelist and secret agent Alec Black is on an undercover mission on Mars. The Martian colonists are preparing for a major offensive against earth and someone is stirring up war-fever. Black must try to prevent it, or the whole system will be engulfed in atomic war. When Black finds himself shadowed by a man who, when confronted, vanishes into thin air, his investigation turns into his strangest case and very soon he's plunged into a dimension of horror...