Hoard of the Dragon Queen - Rise of Tiamat
Leosin Erlanthar is a monk who was investigating the evil dragon cult. He allowed himself to be captured and taken to the Raider’s Camp. The heroes rescue him in Episode 2 – The Raider’s Camp.
We met Leosin again in Eltereal, where we spoke with him and Ontharr. We learned that Leosin is a member of the Harpers, a secret society of mostly wizards that work to keep power out of the hands of evil. We all joined the Harpers through him, and he gave us each a Harper medallion on a silver chain to identify ourselves as members.