Time Shards

It's called "the Event." An unimaginable cataclysm in the 23rd century shatters 600 million years of the Earth's timeline into jumbled fragments. Our world is gone: instantly replaced by a new one made of shattered remnants of the past, present and future, all existing alongside one another in a nightmare patchwork of different time "shards"—some hundreds of miles long and others no more than a few feet across. San Diego native Amber Richardson is stranded on a tiny fragment of 21st century Britain surrounded by a Pleistocene wilderness. She crosses paths with Cam, a young warrior of a tribe…