"Mary Lydiard; or, The Missionary's Daughter" is an exciting adventure book by the famous writer William Henry Giles Kingston. The main character, Mary Lydiard, is in the middle of incredible adventures and trials when she goes on a mission with her missionary father. In the book, readers will experience amazing events, danger and true fighting spirit with Mary. This book is not only a fascinating narrative, but also important conclusions about faith, family and justice. It calls for mercy and self-sacrifice, reminding us of the importance of humanity in an ever-changing world.