When Gwen is snatched from Camelot with out warning, Merlin is aware of there will be just one individual accountable: Morgana. Arthur is decided to rescue his Queen – however it's not going to be simple, for she is locked within the Darkish Tower, a spot that haunts the desires of males. Arthur and his Knights should embark on a quest like no different, battling by way of a panorama riddled with hidden risks, perilous obstacles and magical beings. As they close to their objective, Merlin's sense of dread reaches breaking level. What twisted sport is Morgana taking part in? And extra importantly, simply what's the closing check that awaits them within the tower?