Anyone alive in the eighteenth century would have known that "the longitude problem" was the thorniest scientific dilemma of the day -- and had been for centuries. Lacking the ability to measure their longitude, sailors throughout the great ages of exploration had been literally lost at sea as soon as they lost sight of land. Thousands of lives, and the increasing fortunes of nations, hung on a resolution. The quest for a solution had occupied scientists...

1888. Five years after they met in The Watchmaker of Filigree Street, Thaniel Steepleton, an unassuming translator, and Keita Mori, the watchmaker who remembers the future, are traveling to Japan with their daughter. Thaniel has received an unexpected posting to the British legation in Tokyo, and Mori has business that is taking him to Yokohama. Thaniel's brief is odd: the legation staff have been seeing ghosts, and Thaniel's first task is to find...

"Abbas is just seventeen years old when he leaves his family to serve in the court of Tipu Sultan, a volatile and unpredictable ruler. An inspired woodcarver, Abbas is apprenticed to a master toy maker in order to build a massive tiger automaton, a gift to celebrate the return of the Sultan's sons from British captivity. Working alongside the legendary French clockmaker Monsieur du Leze, Abbas hones his craft and learns to read French and then meets...