The Sigma Curve

At last, Turly Vail has succeeded in forming an alliance of the northern Circle Villages. In the honored position of Center of the Circles, Turly has renounced forever the dangerous temptations of the Blessing Box. But the triumph rings hollow, for his lovely Jeneen, too, is gone—and their son, Thomas, has become distant and unreachable. But when trouble threatens the Circle Villages, father and son set off together to root out its cause. Through arid valleys and the forbidding Lower Mountains, into the lair of an ancient corcerer—to the hiding place of the dread Blessing Box. It is here that the journey to save the Circle people becomes a battle for the entire human race, and one man's courage becomes the final testing for the future of the planet—in the rise and fall of...