We're still months away from the debut of the fifth season of Game of Thrones, but the tantalizing hints about what's to come have already begun. First up is a brief video snippet featuring Arya Stark. She broods, she stabs, and she dashes through the shadows to the tune of Melisandre's ominous words: "I see a darkness in you." It's all very menacing and as yet indeterminate (at least for those of us who haven't read the books), though it seems to mark only the start of a series of such snippets, which will be distributed to fans who visit the newly introduced Three Eyed Raven website. Its sole purpose for now is to sign people up to receive updates via Twitter DM or text message. The small print on the SMS signup page requires consent to receive up to 15 texts, so there are clearly plans to keep trickling out information throughout the cold, dark winter that is to come.