Kit, Mina, Gianni, Cass, Haven, and Giles have gathered in Minas 16th century coffee house and are united in their determination to find a path back to the Spirit Well. Yet, with their shadow lamps destroyed and key pieces of the map still missing, the journey will be far more difficult than they imagine. And when one of their own disappears with Sir Henrys cryptic Green Book, they no longer know who to trust.