[s4e7] The Secret Sharer -

: Morgana teams up with a powerful sorcerer named Alator of the Catha to kidnap and torture Gaius, believing the physician knows the truth about her arch-enemy.

: Agravaine continues his role as a mole, gaslighting King Arthur into believing that Gaius is the traitor within Camelot's walls. [S4E7] The Secret Sharer

: The story explores the "double" or "doppelgänger" trope. The Captain sees himself in Leggatt and hides him in his own cabin, risking his command and his ship to help the fugitive escape. : Morgana teams up with a powerful sorcerer