In 1912, the entire European continent and all of the United Kingdom mysteriously vanished during the Miracle, replaced by an alien landscape known as Darwinia. Darwinia seems to be a slice of another Earth, one that diverged from our own millions of years ago and took a separate evolutionary path. As a 14-year-old boy, Guilford Law witnessed the Miracle as shimmering lights playing across the ocean sky. Now as a grown man, he is determined to travel to Darwinia and explore its mysteries. To that end he enlists as a photographer in the Finch expedition, which plans to steam up the Rhine (or what was once the Rhine) and penetrate the continent’s hidden depths as far as possible. But Law has brought an unwanted companion with him, a mysterious twin who seems to have lived — and died — on an Earth unchanged by the Miracle. The twin first appears to Guilford in dreams, and he brings a message that Darwinia is not what it seems to be — and Guilford is not who he seems to be.