It’s “master bun,” as in the bunny that controls all of the other bunnies. So much more than just a rabbit. The bun at the center of a nest–a fluffy nest with a thousand cottontails and she knows precisely how each and every single one of them hops.
So who is this international rabbit of mystery?
You know what they say: “If there’s a bun on the wall in the first chapter…” What fluffy friend was introduced earlier in the story?
BLUEBELL.
“But Bluebell’s dead!” you cry out in your naïveté.
No, you sweet, sad thing. I can only pity you. You see but you do not observe.
Not only that, but Redbeard was in fact the ONLY real character in the entire show.
Every other character in Sherlock existed purely in a dog’s imagination. After his owner spent yet another evening sitting inside reading detective stories, Redbeard dreamed of having a different life where his owner was much more adventurous.
Yes, it all seemed to take a tragic turn at the end, but that was because it was the kind of dream where you wake up and learn a lesson about feeling grateful for what you have. Instead of ceasing to exist in a sudden collision of angst and plot twists, Redbeard actually woke up, got a treat, and then was taken to the dog park where he could play with his friend Eurus the Greek Shepherd while their owners sat on a bench reading. (Eurus’ owner only reads about airplanes. You should see that dog’s dreams.)
This theory, of course, explains why the only other dog we saw Sherlock interact with was pretty pathetic at his job. Sorry, Toby, but Redbeard wasn’t going to invent a true rival in his own dream.
I don’t know about you, but I’m feeling pretty okay with the revelation that we’ve all spent half a decade obsessing about the imaginings of a very creative pup. Good dog, Redbeard.