Two boys, born with incredible intellects, know everything-except the facts surrounding their births. While Xander basks in the adulation of his parents, Nathan and Marika, Leo suffers from the fact that his parents, Eloise and Phillip, have not succeeded in breeding the scientific super child they were expecting. They make no attempts to conceal their disappointment. Instead of creating a scientific genius, Leo's forte is mathematics. Their disgruntlement is not lost on Leo. By the time they are fourteen, both boys have been granted doctorates by their respective universities and are sent to work on top-secret government projects. The earth is threatened by a huge mass, which will inevitably destroy it. Leo and Xander must pool their vastly superior knowledge and intellects to save the planet. However, the instant they meet and discover they are practically identical, the secrets surrounding their births are revealed. Can they overcome their shock and apply themselves to the massive task they have been given? Praise for Siblings "An intense, well-crafted story of how the people close to us can become our worst enemies" (Kirkus Reviews).