Hong Kong, 1935. A year after the Temple of Glass, Jeremy Topper finally has his name on a famous map. Now it is also on a forged chart that is steering ships onto a reef in the South China Sea. Three wrecks, one stolen signature, and four days before a crowded liner sails by the same lie. From the monsoon streets of Hong Kong to the gambling dens of Macau and a reef that only rises at the lowest tide, Jeremy has to find out who is lighting the false lights before his good name sinks for good.