Kollur Blue is the first thriller from the Gravitas Files. "I will find you my darling. I promise. I will find you one day and we will lie together again." For almost four hundred years historians have sought to uncover the truth surrounding the magical properties and curse of the famous Hope Diamond. There are many theories, some are fact, some are fiction. But there was one side of the story no-one suspected..... In 17th century India a deserter stumbles into a temple and commits a crime that will lead to greed and death spanning centuries...... and where a French merchant traveller will launch a journey of obsession that will last for generations. In present day London Luke and Kath Matthias are devastated by another family tragedy. In the aftermath Luke fights conflicting emotions about taking over the family business when he realises unknown forces are conspiring against him. Meanwhile Kath begins a search for the truth behind a lost heirloom, unaware that, in a small town on the shores of Lake Geneva, a ruthless aristocrat is determined to recover a precious object denied to his ancestors. When Kath disappears, Luke turns to his friend, Daniel "Stewie" Stewart, for help as he plunges into a desperate search to find his sister before her abductor unravels the mystery that only she has solved. From the heady days of trading in 17th Century riches from the Far East, through the violent days of the French revolution, to the streets of present day London and the scenic lands of central Europe a family must battle to defeat the obsession of unknown forces intent on their destruction.