Earth by David Brin
Condition:
Creasing to the spine
TIME IS RUNNING OUT Decades from now, an artificial black hole has fallen into the Earth's core. As scientists frantically work to prevent the ultimate disaster, they discover that the entire planet could be destroyed within a year. But while they look for an answer, some claim that the only way to save Earth is to let its human inhabitants become extinct: to reset the evolutionary clock and start over.