Spectrum
Sergey Lukyanenko
 His life changes when a wealthy man walks into his office and asks him to find his missing daughter. After a short investigation, the Walker finds her on Library - a world full of ancient ruins. Before he can bring her back, however, she dies in a freak accident. A clue leads him to another alien planet where he finds her alive and well. Soon he discovers that the same woman exists on several other worlds, each is connected to the other. One by one, they are killed in seemingly random, totally unrelated events. It is to the Walker's great surprise when he finds himself becoming attracted to his client's daughter. It's a race against time, as the Walker desperately tries to save the identical copies of the woman, only to have them die in his arms. Can he save the last one before she perishes and, in the process, uncover a massive conspiracy going back thousands of years with the Keymasters in the middle?