Callum 'Yarra' Jones is an orphan, but he has never accepted he is alone in the world. The location and the mystery surrounding how he was discovered as a new-born baby makes him believe his mother cared for him very much and must be somewhere. At the age of 12 he decides it is time to find her. His search becomes a most extraordinary adventure through time.Set in Melbourne, Australia, in two time periods, the 1870s and 1920s; both colourful and exciting periods - especially for children.