Pangea's Dusk 2
There was a lot of things we both weren't saying, communication with David should have been easy, even more so when the guy was the most powerful telepath in the entire universe. But we couldn't say anything, all we could do was single mindedly focus on our task and try to save the world that was practically or almost a mirror image of earth.
Pangea had similarly named cities and towns, very obvious copies of people on earth, an alternate version of themselves or something like that. I knew deep down that this planet was not just important to David, it was also important to earth. I suspected that it was an anchor, Earth was outside of the layers, and even when the entire layers had fully merged, earth would need an anchor to draw it into the layers and keep it safe from the devourer.