Spirits of the Breach

Morgana has returned from her year-long captivity with Morgause, but things still aren't settled between her and her maidservant. When she can't sleep one night, Gwen tells her a ghost story, just like old times. As she weaves the tale, could Gwen be unearthing history of something she shouldn't? Or is there something darker at work here? Set in the events of s3 ep1 and s4 ep1, ca