Outlander is the first book in a captivating historical romance series by Diana Gabaldon. The story revolves around Claire Randall, a World War II nurse who mysteriously travels back in time to 18th-century Scotland. There, she finds herself torn between two men: her husband in the present and a Scottish warrior in the past. Outlander is a thrilling blend of romance, adventure, and time travel that will keep readers hooked from beginning to end.