The Bridgertons: It's All in His Kiss. Book 7. ​​Julia Quinn, Shonda Rhimes

Poor Gareth St. Clair! His scornful father is determined to bring the St. Clair estates to ruin and disinherit his son. The heir inherits only the diary of his Italian grandmother. Whatever it may be hiding, secrets of the past or the key to the future, Gareth does not know a word of Italian. The wickedly frank clever Hyacinth Bridgerton, charming and irritating at the same time, undertakes to translate the diary. At the annual musical evening of the Smythe-Smith family, Gareth and Hyacinth seem to be the only real ones: his every word sounds like a challenge to her. Could it be that the answers they are looking for lie not in the diary, but in themselves or in one perfect kiss?