In gigantic caves on the Moon, the low gravity allows the colonists to achieve the age-old dream of strapping wings to their arms and flying like birds. But Holly Jones's other dreams are threatened by the arrival from Earth of a beautiful woman who has mesmerized her boyfriend. Back on Earth, a mathematician charts an upsurge in strange events to predict the most incredible event of all. Elsewhere, a man travels through a time gate into the future, seeking free will and finding something very different. A showcase for the talents of a master storyteller. Reprint.