I like this episode. With its theme of two men linked, it belongs in 1970 parallel time, but they hadn't dreamed up parallel time yet, so we get it now.
Willie's grief for Barnabas is surprising. The last time we saw them together, Barnabas was being quite cruel to Willie, and anyway, Willie hasn't been a nice person at all since he got back from Windcliff. Now he is full of compassion for Barnabas, and for Julia as well.
Stokes's "feeling" about Adam is essential to the plot, but it puzzles me - perhaps wrongly. When Stokes messed around with the Dream, we learned that he had supernatural abilities, which, as far as I remember, weren't ever specified, so that I have trouble believing in them even though we saw a demonstration. The "feeling" could be a result of those supernatural abilities, or maybe Stokes, knowing how Adam came into existence, reasons that he can't die that simply. The latter seems unlikely to me; in his position I would think that Adam would be more likely to die unexpectedly. After all, how long can you keep an unnatural creature alive? So...what was the "feeling"? Maybe we find out in tomorrow's episode. I can't remember.
When I finally finished watching the whole series after Barnabas's arrival, one of the things that surprised me was how sparingly Professor Stokes was used. I think that 1968 was when we saw him the most often. Just as we never get a back-story for Julia, we never get one for Stokes, either. I'm glad we didn't. It would diminish him.
