Jackie French 
Secret of the Black Bushranger (The Secret History Series, #3) 

The third book in a series that explores Australia’s secret histories By the 1790s, orphaned Barney Bean finally has his own farm in the early NSW colony. All his dreams are coming true! Black Caesar claims he is an ex-slave who vowed to be free. Or is he a laughing villain, a trickster who plans to terrorise the colony?Should Barney help him? Or does he risk losing everything — including his life?In this third title in The Secret Histories series, award-winning author and Children’s Laureate Jackie French has researched the life of little-known John Black Caesar, who was Australia’s first recorded bushranger.