#4 Charlie Thorne and the Royal Society (平裝本)

Charlie Thorne，天才少女，歷經三場世界級謎題後，再次被捲入新一波競逐——這次的主角是牛頓。留下線索的不只是物理大師，更是一位用智慧隱藏祕密的思維大師。這場冒險帶她從英國的大學屋頂飛奔到澳洲火山口，面對的不只是難解的數學與密碼，還有更多識破她、追趕她的人。當敵人愈來愈近，線索愈來愈複雜，她也愈來愈清楚，這不只是場尋寶，更是一場關於信任、勇氣與選擇的試煉。

In the fourth installment of the New York Times bestselling Charlie Thorne series—which #1 New York Times bestselling author Chris Grabenstein called “a real page-burner”—Charlie searches for Isaac Newton’s secret treasure across Europe and Australia.

Charlie Thorne is a genius. Charlie Thorne is fearless. Charlie Thorne may have finally met her match.

Charlie Thorne is used to being on the run. Ever since she was recruited by the CIA to track down Einstein’s most dangerous equation, Charlie and former CIA agents, Dante Garcia and Milana Moon, have traveled around the world to prevent history’s greatest discoveries from falling into the wrong hands. But after beating others to the secrets hidden by Einstein, Darwin, and Cleopatra, they find they are not the only ones searching for an immensely powerful discovery of Isaac Newton’s.

From a chase over the rooftops of Cambridge University to scaling the Sydney Harbour Bridge to skirting a volcanic eruption, Charlie will need to think one step ahead of her opponents to follow Newton’s trail of devious clues and keep herself out of the hands of the many enemies who are hot on her tail.