The Visitors: Clone Codes

There is a wicked system of operation inside the Topas Corporation, where clones are produced. Only authorized Topas officiald are allowed inside. Only they, along with the clones themselves, know what happens within the walls of the world's largest and most influential cloning company. In the stunning conclusion of thr Clone Codes trilogy, Carlos Pace, a boy genius with a very powerful memory stick, takes us into this alternate – and strange – reality.
The O have returned to guide and protect. But can they keep Leanna and Houston safe from the bounty hunters who want them destroyed?
Once again, the McKissacks blend a futuristic society with events from world history to create a gripping sci-fi adventure.