The Mystery of Lord Sha

The second book in Erik L'Homme's Book of the Stars trilogy. Back at the Guild of Sorcerers after his adventures in the Uncertain World, apprentice Robin Penmarch discovers his teacher Quadehar has been accused of treachery by a hidden enemy within the Guild. While Robin fights to clear his mentor's name, a mysterious stranger calling himself Lord Sha arrives at the monastery — and his true identity is bound up with the fate of the stolen Book of Stars.