Game of Thrones star Maisie Williams drops big spoiler on Jimmy Fallon

The 21-year-old actress stopped by The Tonight Show Starring Jimmy Fallon on Monday and put all other April Fools' Day pranks to shame.

Fallon and fans alike were flabbergasted by this shocking bit of information - and Maisie, too, looked genuinely horrified that she'd landed that bombshell.

Game of Thrones returns to HBO for its eighth and final season on Sunday, April 14. "Fear's really good - Fear will keep you safe but you need to just channel that fear and use that energy to achieve what you want to achieve..."

Then she freezes, hands trembling and she covers her face in shock and horror. And in a moment, she said, "Because when I found out that Arya died in the second episode." and everyone went silent on the set.

Given that she's a talented actress, the various gasps from the audience seemed to imply they believed her as she stormed off the stage.

Also seen beside the Mother of Dragons in these new images is Jorah Mormont, played by Iain Glen, who was cured of Greyscale by Samwell Tarly in season seven. Nearly two years after season 7, it's back.

At the end of the last season, Jon Snow and Daenerys Targaryen were heading towards Winterfell so they can unite their forces and take on the White Walkers.

"There are so many, but in terms of things that have really defined her, I think, number one would be Ned's beheading in Season One".

During one of the six final episodes of the show, "Game of Thrones" viewers will witness the longest consecutive battle scene ever committed to film, for the epic battle of Winterfell, Entertainment Weekly reported in March.

She added: "Well, I have to tell someone, otherwise I'll burst". Let us know in the comment section below! However, what's more important is the strong symbolism of the items the camera focuses on after it pulls away from the ruined Stark flag at the beginning.