Stephen Baxter's "imaginative [and] bold" ( Daily Mail , UK) Stone Spring drew readers into an alternate prehistoric scenario. Now, thousands of years have passed, and a wall that was built to hold back the sea must now hold back the advancing armies of a reviving Troy.... Created by the building of the Wall, Northland has become a society of prosperous, literate, and self-sufficient people. Inhabited from end to end, the Wall is a linear city stretching...