A great episode despite it not being my favourite storyline. I don't like the thought of Tom being controlled by someone from the future, turning him into one of the marked. I'm sure Diana and Meghan will figure it out, after all, he is behaving unlike Tom, but still, I hope they figure it out sooner than later.
I loved the return of Lily, if only for one episode. I always loved Richard and Lily as a couple, so it was great to see them together again, while at the same time it was very sad.
Isabelle was always going to be returned to her adult age, but this seemed too easy, too fast and too soon.