After a hard year working on the stinking canals of Dunsgow, Fireboy's skill with steamboats has earned him barely half the money he needs to pay off his mother's bond. Only then can he reunite his family on the clean water of the River Slow. A chance meeting with a seer inspires him to trade in his boat for a new steam launch expressly designed for rivers, and to take on cargo for Baron Miner - the man who holds his mother's bond. If Fireboy has...