1880: Evie Ludgrove grew up in the shadow of her father’s obsession with the great Australian explorer Dr. Ludwig Leichhardt. So when an advertisement appears offering a thousand-pound reward for proof of where Leichhardt met his fate, Evie is determined to unravel the secret. But when Evie sets out to prove her theory, she vanishes without a trace. 1911: Letitia Rawlings arrives at the family estate to inform her great-aunt Olivia of a loss in their family. But Letitia is also escaping her own problems. So when she discovers a beautifully illustrated map that might hold a clue to the fate of her missing aunt, Evie Ludgrove, she sets out to discover the truth. However, all is not as it seems, and Letitia begins to realize that solving the mystery of her family’s past could offer as much peril as redemption.