Set during World War II. Arthur is sent to the front lines to fight for Britain, while Merlin is left behind, struggling to cope with the absence of his best friend. Seeking to give Arthur some comfort, Merlin begins to send him pieces of a story, which tells of a legendary King and his devoted manservant.
Through their letters, Arthur and Merlin grow closer, and perhaps begin to discover feelings that they could not put into words before. But will Arthur make it through the war? And what will happen if he does?"Thus Merlin and Arthur protected each other, side by side, against the world and their many formidable foes."
series 1 merlin: earnest if somewhat reluctant loyalty to arthur
series 2 merlin: bewildered subordination in arthur’s presence
series 3 merlin: endless flirty sass at arthur’s expense
series 4 merlin: solemn acceptance of undying love for arthur
series 5 merlin: desperate, ruthless sacrifice to keep arthur