HBO's adaptation of Game of Thrones will start its final season on April 14. To prepare fans for the arrival of winter in season 8, a "Crypts of Winterfell" trailer was released last night. 

In the short clip, we see Jon Snow walking through House Stark's crypt, passing by his mother Lyanna Stark's statue as well as Ned Stark's. When Jon reaches his own crypt, he is joined by his sisters Sansa and Arya. The ground then proceeds to turn into ice, foreshadowing the impending arrival of the White Walkers. 

Take a look at the clip below and set your reminders for April 14.