Describes the history of mapmaking and provides instructions for making maps.

She has only seen the world through maps. She had no idea they were so dangerous. Boston, 1891. Sophia Tims comes from a family of explorers and cartologers who, for generations, have been traveling and mapping the New World -- a world changed by the Great Disruption of 1799, when all the continents were flung into different time periods. Eight years ago, her parents left her with her uncle Shadrack, the foremost cartologer in Boston, and went on...

In a world transformed by 1799's Great Disruption--when all of the continents were flung into different time periods, Sophia Tims journeys home to Boston, anticipating her reunion with Theo, but he has been conscripted to fight in the Western War, Prime Minister Broadgirldle's twisted vision of Manifest Destiny.

"The King is determined to create the first map of the world and has scoured the kingdom for boys who could become mapmakers. When Quinn is chosen for the King's training school, he's amazed - but that is nothing compared to his shock when he is selected as one of the three mapmakers and finds himself on board a ship, competing for the big prize. So begins Quinn's reluctant journey deep into the unknown, on a ship captained by a slave, with a stowaway...

"Alidade, Lewis, and Blue encounter a young boy named Cado, who brings them to his hidden Mountain village where his people are suffering from a mysterious illness, and Alidade, determined to prove her worth as a Mapmaker, tries to bring balance and magic to the Mountain."--