Morgana promises Merlin she'll keep his poisoning a secret. For a price. Can Merlin pay it? Will he succumb to Morgana's seductive tactics? Will she be able to keep herself aloof? It's a sexual battle of wills with only one winner. But what about hearts? All's fair in love and war...especially in the bedroom. In the margins of S3 and beyond, what trouble could these two get into?