game-of-thrones-season-6-poster_1280.0HBO has released the first teaser trailer for Game of Thrones Season 6.

The trailer features the voice of the Three-Eyed Raven, presumable speaking to Bran Stark. We see images of Jon Snow and many of the past deaths from the show’s first five seasons.

Bran caps the teaser off with the line, “They have no idea what’s going to happen.” That’s a line that can be taken in a pretty meta-textual way, as the series prepare to go where no book-reader has gone before.

Game of Thrones returns to HBO in April 2016.