Twenty-five years out from Earth, Heaven Star was halfway to a new world, when the strange set in. It was only small things at first... measurements that were slightly off... instruments that wouldn't stay calibrated... computer malfunctions. It could have been simple equipment failure. But it wasn't. For on the quantum level, the eternal dance of matter and energy was changing its measure, and the colonists bound for Heaven were riding a space/time curve down to the deepest circle of Hell...