Believe it or not, we do have answers to every single plot point in the show. Some are ambiguous and are still theory-based rather than confirmed, but, since the show has officially ended, we have to assume it is safe to accept the most basic and logical theory as being factual. If it wasn’t answered explicitly in the show, it’s because the writers felt it was already answered (or was so damn obvious). Also, some things in the show ended up not being significant, such as Wren colouring in a red coat. Some things really are as simple as they appear at first glance; not everything has a subliminal and deeper message. Please keep these notes in mind when reading these. So here is every single mystery-related plot point, and their respective confirmed/most likely answers.