01 - Missing- Page Thirteen by Anna Katharine Green

Join Violet Strange, a sharp and resourceful petite detective, as she embarks on a thrilling quest to recover a crucial page that has mysteriously vanished from an important document. The stakes are high, with the futures of an eccentric misanthrope, a brilliant chemical scientist, and a newlywed couple hanging in the balance. As Violet unravels this enigma, she stumbles upon another mystery that stretches back many years, leading her down a captivating path of intrigue. (Summary by Bev J. Stevens)