For the first time, all six books in USA Today Bestseller Grace Callaway's Heart of Enquiry (the Kents) series are available in one boxed set...with a bonus novella included! “Grace Callaway is becoming one of my all-time favorite authors. The Kents remind me so much of the Mallory-Anderson saga from Johanna Lindsey or the Spy series from Julie Garwood. I’ve read those books so many times and now I find myself rereading Grace’s books.” -Vivian, Amazon Reviews The Duke Who Knew Too Much When Miss Emma Kent witnesses a depraved encounter involving the wicked Duke of Strathaven, her honor compels her to do the right thing. But steamy desire challenges her quest for justice, and she and Strathaven must work together to unravel a dangerous mystery...before it’s too late. M is for Marquess With her frail constitution improving, Miss Dorothea Kent yearns to live a full and passionate life. Desire blooms between her and Gabriel Ridgley, the Marquess of Tremont, an enigmatic widower with a disabled son. But the road to love proves treacherous as Gabriel’s past as a spy emerges to threaten them both… and they must defeat a dangerous enemy lying in wait. The Lady Who Came in from the Cold Former spy Pandora Hudson gave up espionage for love. Twelve years later, her dark secret rises to threaten her blissful marriage to Marcus, Marquess of Blackwood, and she must face her most challenging mission yet: winning back the heart of the only man she’s ever loved. The Viscount Always Knocks Twice Sparks fly when feisty hoyden Violet Kent and proper gentleman Richard Murray, Viscount Carlisle, meet at a house party. Yet their forbidden passion and blossoming romance are not the only adventures afoot. For a guest is soon discovered dead—and Violet and Richard must join forces to solve the mystery and protect their loved ones… before the murderer strikes again. Never Say Never to an Earl Despite their outer differences, shy wallflower Polly Kent and wild rake Sinjin Pelham, the Earl of Revelstoke, have secrets to hide—and both desperately fear exposing their true selves. Yet the attraction between them is too strong to deny, and they become entangled in a passionate adventure. Both will have to face their greatest fear in order to win the love of a lifetime... and to survive the machinations of the enemy who lies in wait. The Gentleman Who Loved Me What happens when fate throws a headstrong miss on a mission to find a titled husband together with a powerful and notorious club owner who is anything but a gentleman? Find out in this final passionate installment in the Kent family series, which stars Primrose Kent and Andrew Corbett in his long-awaited return. Bonus Novella: The Widow Vanishes (Prequel novella to the series) Fate throws beautiful widow Annabel Foster into the arms of William McLeod, her enemy’s most ruthless soldier. When an unexpected and explosive night of passion ensues, she must decide: should she run for her life—or stay for her heart? “This writer to me is in the leagues of Johanna Lindsey, Lisa Kleypas, Julia Quinn and Amanda Quick.” -Kathie, Amazon Reviews