Leave it to Doctor Who to squeeze two intriguing lines into a single 41 second teaser. One might even argue that there’s a third. First, the Doctor says, “You are the only mystery worth solving.” Doctor Who fans (AKA real geeks) love a good mystery and if it’s good enough for him, it’s good enough for us. Then, they cut to a scene that has the Doctor uttering words we never thought we would hear. “I am the Doctor and I am afraid.” Whatever it is that could scare him, we’re dying in anticipation to find out more about it. Here’s the teaser: https://www.youtube.com/watch?v=SRQu3MvRySA