Time's Eye (A Time Odyssey, Book 1) by: Arthur C. Clarke and Stephen Baxter
Hardcover. NY, Del Rey Ballantine, 1st, 2004, Book: Very Good, Dust Jacket: Very Good, Hardcover in a bright, unclipped dust jacket, 337 pages. Mysterious, incredibly superior alien beings assemble a new Earth out of bits and pieces of the old one, which they snatch from various eras. So a UN helicopter crew from 2037, a crew of astronauts from the same era, Genghis Khan and his Horde, Alexander the Great and his army, a British Indian outpost where Rudyard Kipling (rendered here in all his youthful complexity) is visiting, and a remnant of Babylon end up coexisting. Not at all peacefully, either, especially when one astronaut, a ruthless and foul-mouthed American woman, decides to aid and abet the Mongols in their career of world conquest, which can be halted only by the other civilized time travelers joining forces with a very well portrayed Alexander. In the end, civilization's prospects have been propped up, and one of the UN crew is off to find the aliens. CD-ROM included.