Sphere

In the middle of the South Pacific, a thousand feet below the surface, an enormous spaceship is discovered. American scientists descend to investigate the find. They are stunned by what they find: a spaceship apparently undamaged by its fall from the sky. They know that it must be destroyed, yet they cannot destroy it. It is more than three hundred years old and contains a terrifying and destructive force that must be controlled at all costs. Devise their plan for safeguarding this danger, and I will buy the book!