When Jack Chambers receives news of his father's death, he does not feel grief. He has not seen him for fifteen years. He is surprised, however, to learn of his appointment as executor of the will - a duty that seems simple, but turns ominous once he reads its contents. Timothy Chambers left behind a leather-bound manuscript titled Invisibility: A Manual of Light. The will assigns Jack two tasks: publish the manuscript, and track down an unknown woman who stands to inherit Chambers' wealth.To accomplish both goals, Jack must first reunite with his estranged half-sister, Louise. When they embark to Rome - the heart of their father's shrouded life - they discover a cult-like group of outcasts who were his followers. Their unwavering obsession is the pursuit of indigo - a perfect cross between blue and black that, when achieved, disappears to the human eye. In indigo, Timothy Chambers had sworn, lay the secrets of invisibility.On the threshold of uncertainty, Jack glimpses both the intoxicating pleasures and pitfalls of the elusive indigo - and perceives its horrid danger only when it is too late. Read Less