IGN | ‘Once Upon A Time: Nimue’ Review
IGN
It was obvious Nimue was going to be revealed as the first Dark One so they may as well have had Merlin say it instead of having him pull an Obi-Wan. That aside, this detour into Merlin's backstory gave greater depth to events in the present. His close ties to the Dark One make his interactions with Emma more meaningful. A hint of what turned Emma bad would have made the last scene with Excalibur more chilling though.
