This book begins when Norman, A psychologist, is called by the Navy for a very special project. So special, that the Navy doesn't tell Norman and a group of scientists what they think is really going on. The special group is sent underwater to spend a few days investigating a space craft. There the group finds a beautiful sphere.They are all dumbfounded about why the mysterious sphere is there. It doesn't seem to do anything.....At first. Crichton, once again writes another thrilling novel. "Sphere" keeps your attention, and makes you believe you are a part of it's world.With never a dull moment, you will absoutely love "Sphere."