What begins as an exciting challenge turns into a countdown to save a young girl's life... As seventeen-year old Aril Ousby, the son of a renowned astrophysicist, embarks on a geocache treasure hunt in Britain, a series of kidnappings takes place in the United States. How are these events connected? Is Aril right to trust the enigmatic architect of the treasure hunt - or is he being led into an elaborate trap? Is the puzzle master motivated by altruism - or greed? And why has he chosen to involve Aril in his scheme? Aril and his friend Unity are drawn into a mystery that leads them to look at the Earth from a new perspective and to address a fundamental question: can future generations avoid the mistakes their parents made?