Tall, Duke, and Scandalous by Amy Rose Bennett

This bluestocking would do almost anything to save her reputation and her grandfather’s legacy…even marry a scandalous duke.

No-nonsense Jane Delaney divides her time between her grandfather’s beloved bookstore and writing newspaper columns, determined to overcome a past that’s left her with scars on her face and in her heart. But when the store ends up in unexpected financial jeopardy and Jane’s secrets are threatened by a mysterious blackmailer, she finds herself in desperate need of money. All seems lost until a temptation like no other presents itself…
Christopher Marsden is the new rakish Duke of Roxby…and someone wants him dead. The problem is, he has no idea who or why. Following a vicious attack, he’s acquired a rare affliction where he can no longer recognize faces. But when he catches Miss Delaney attempting to steal a priceless book from his library, Christopher can tell her apart from the rest. Her scarred beauty stands out like a beacon, and he doesn’t want to let her go. So he offers her an outrageous proposal: the money she needs in exchange for a marriage of convenience and her help in catching his would-be killer.
As passion flares between the two unlikely newlyweds, dangerous truths are exposed and hidden enemies poise to strike. Can these two damaged souls survive long enough to find love?