The Silkie

de A. E. van Vogt

The Silkie -- A living spaceship, impervious to heat and cold, virtually indestructible and capable of travelling at supersonic speeds. The Silkie -- Similar to a human being, but not the same. Highly intelligent. The Silkie -- Able to live under the oceans with the ease of a dolphin and the speed of a shark. The Silkie -- A modern angel or a computerized demon? The Silkie -- A friend of Earth, or a pitiless, alien destroyer?