Diana Cosby Books in Order
Diana Cosby is a celebrated international bestselling author of Scottish medieval romantic suspense. As a retired Navy Chief, she brings a unique perspective to her writing, drawing inspiration from the diverse cultures and people she encountered throughout her career. With 34 moves under her belt, she weaves intricate stories of adventure and romance, reflected in her award-winning MacGruder Brothers series, which has been translated in five languages and has captivated readers worldwide. Diana has shared her expertise at esteemed venues including the Library of Congress and Lady Jane’s Salon in NYC. Her works have been featured in prominent publications such as USA Today’s "Happy Ever After," MSN.com, and Woman’s Day. With releases like An Oath Taken and The Oath Trilogy, she continues to captivate audiences with her compelling storytelling.
Bibliography verified: January 2026
Book Series by Diana Cosby
About Diana Cosby
Diana Cosby is a celebrated international bestselling author of Scottish medieval romantic suspense. As a retired Navy Chief, she brings a unique perspective to her writing, drawing inspiration from the diverse cultures and people she encountered throughout her career. With 34 moves under her belt, she weaves intricate stories of adventure and romance, reflected in her award-winning MacGruder Brothers series, which has been translated in five languages and has captivated readers worldwide. Diana has shared her expertise at esteemed venues including the Library of Congress and Lady Jane’s Salon in NYC. Her works have been featured in prominent publications such as USA Today’s "Happy Ever After," MSN.com, and Woman’s Day. With releases like An Oath Taken and The Oath Trilogy, she continues to captivate audiences with her compelling storytelling.
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