"To Capture What We Cannot Keep" is a novel written by Beatrice Colin and published in 2016. The story takes place in Paris in the late 19th century and follows the lives of two individuals from very different backgrounds: Caitriona Wallace, a young Scottish widow who works as a chaperone to a wealthy family, and Émile Nouguier, an engineer who works on the construction of the Eiffel Tower. Despite their disparate social positions, Caitriona and Émile are drawn to each other and embark on a passionate love affair. However, their relationship is complicated by the societal norms of the time and the class barriers that separate them. As they struggle to navigate their feelings for each other, they must also contend with the challenges of life in a rapidly changing city, including political upheaval and the looming threat of war. The novel is a richly evocative portrait of Paris in the Belle Epoque era, capturing the beauty and turmoil of a city on the brink of transformation. Colin's prose is lyrical and immersive, transporting readers to another time and place with vivid detail and deep emotion. "To Capture What We Cannot Keep" is a beautifully crafted novel about love, loss, and the power of human connection.