California, 1868. Isabella Wilmington's dream of taking center stage feels empty without her long-lost twin brother cheering her on. When a bullet cuts through the crowd, she's convinced the murderous act is a warning shot against her search for her missing sibling. Determined to crack the case, she tags along with a rugged ex-soldier who'd rather keep her out of harm's way than put her on the frontlines of a dangerous investigation. Union...