As executor of his estranged father's will, Jack Chambers must publish Invisibility, A Manual of Light - his father's research. Indigo is a colour that does not exist, yet the quest for its discovery was Tim Chambers' lifelong obsession - for him indigo was a colour, a place, even a state of being - and it conferred invisibility.
In Chicago, Jack, twice divorced, besotted by women (always the wrong ones), makes a good start by falling in love with his half sister. In his search for beneficiaries of the will he travels to Rome, encountering the sexually magnetic Natalie on the way, who, at least for a time, takes his mind off his incestuous yearnings.
Its description as a 'supernatural thriller' doesn't do justice to the novel: the supernatural is there, lurking around the edges of vision like the elusive colour of the title, but although not fast-paced enough to be a thriller, Indigo does make an atmospheric mystery. Intriguing, beguiling and fascinating by turns, you will want to read on. It's a story that gets under the skin, so it was disappointing that the ending left so much unresolved.
