The Carmichael Saga Series by Christi Caldwell

Lady Diamond "Glain" Carmichael, paragon of propriety, is horrified when she discovers her headstrong younger sister at the Royal Colonnade Library reading books that would enrage their ducal father. Worse, this disaster-in-the-making has been abetted by an outspoken, opinionated librarian named Mr. Abaddon Grimoire... moreLady Diamond "Glain" Carmichael, paragon of propriety, is horrified when she discovers her headstrong younger sister at the Royal Colonnade Library reading books that would enrage their ducal father. Worse, this disaster-in-the-making has been abetted by an outspoken, opinionated librarian named Mr. Abaddon Grimoire.Abaddon clawed his way free of a life of poverty and crime thanks to the refuge he found at the Royal Colonnade Library, and he's determined to help other people find their escapes as well—in the pages of the library's books! He issues Glain a challenge: Spend a fortnight exploring the volumes on the library's shelves; if after two weeks, she still wants to prevent her sister from visiting, he won't interfere.Abaddon soon realizes that beneath Glain's icy veneer beats the heart of a loyal, loving, and passionate woman, and Glain comes to see that Abaddon's devotion to books is a respect for truth and learning. A former guttersnipe and a duke's daughter aren't the stuff of matches made in Mayfair, but perhaps happily ever afters aren't just for fairy tales!Note: This will be the first time Diamond in the Rough is available worldwide to readers. Previously, this story was half of Yuletide Gems, a novella duet originally published as a library exclusive in 2022. less

The #1 Rule among sisters are off-limits...rules however, are meant to be broken. Lady Opal Carmichael is a wild-spirited hoyden with a love for books, and absolutely zero interest in marrying a duke. Being the daughter of a ruthless duke, she knows firsthand to steer clear of those powerful peers. Opal can, however make an exception for one duke—Lockwood “Locke” Renwick, the Duke of Strathearn. She’s loved him forever... moreThe #1 Rule among sisters are off-limits...rules however, are meant to be broken. Lady Opal Carmichael is a wild-spirited hoyden with a love for books, and absolutely zero interest in marrying a duke. Being the daughter of a ruthless duke, she knows firsthand to steer clear of those powerful peers. Opal can, however make an exception for one duke—Lockwood “Locke” Renwick, the Duke of Strathearn. She’s loved him forever. And with his winter, house-party, approaching, she intends to make him fall in love with her.There’s just one small problem—Locke is England’s wickedest rogue, a consummate bachelor, and also her brother-in-law’s best friend.Lockwood Renwick, the Duke of Strathearn answers to no man. He lives only for his own pleasures and pursuits. Among Strathearn’s favorite? Spending nights with London’s most skilled, lusty, widows and unhappily married women.When he agrees to host a house party in honor of his best friend’s, little sister-in-law, it isn’t long before Strathearn finds himself dangerously tempted by the forbidden—an innocent, exquisitely breathtaking, and all grown-up, Lady Opal. As a duke he’s never been denied.Now, Strathearn finds himself fighting a battle between the gentlemanly code of friendship that marks the young woman off-limits—and his all-powerful desire for Opal. less