What to read after A Conspiracy of Kings?

Sophos, heir to the throne of Sounis, has disappeared without a trace. Eugenides, the new and unlikely king of Attolia, has never stopped wondering what happened to his friend. Nor has the Queen of Eddis, who once offered Sophos her hand. They send spies. They pay informants. They appeal to the gods. But as time goes by, it becomes less and less certain that they will ever see their friend alive again.

Battles are fought, bribes are offered, and conspiracies are set in motion. Across the sea, a ruthless empire watches for even the slightest weakness. And Sophos, anonymous and alone, bides his time. Until, drawing on his memories of Gen, Pol, the magus—and Eddis—Sophos sets out on an adventure that will change all of their lives forever.