Catacombs of Chaos, The Adventures of Lottie Lipton

Welcome to the British Museum, home to Lottie Lipton: nine-year-old investigator extraordinaire! The British Museum needs a big donation to stay open—and it has to be by tonight. For once, Lottie and Sir Trevelyan Taylor, the head curator, want the same thing. Can Lottie follow the clues to come up with a fortune in time?