Game of Thrones is down to just three episodes remaining until the Season 4 finale, which is expected to have some major plot twists and cliffhangers.

Episode 8, however, was not aired over the Memorial Day weekend as the HBO show took a one week break. But Season 4 Episode 8 will be back this coming Sunday and is set to start building up the tension towards the season finale in a month's time.

In the latest spoilers news, Lena Headey recently posted an Instagram photo that triggered excitement among fans, who interpreted the photo as confirming that Lady Stoneheart might appear somewhere in the remaining few episodes of Season 4.

In the Instagram photo posted by Headey, who plays Cersei Lannister, the image was captioned "My Stone Heart."

Fans were quick to speculate that there will be a major development over the course of the final three episodes, and rumor has it that the "stone" Headey was referring to is actually Lady Stoneheart, played by Catelyn Stark.

There has been speculation that Lady Stoneheart will be resurrected from the dead to lead the Brotherhood Without Banners.

Some others, however, believe that Headey's Instagram post might just be an innocent social media update, but with the Coldhands being eliminated from the script, it is not too hard to believe that the Game of Thrones writers are up to something big.

Episode 8 The Mountain and the Viper is scheduled to appear this Sunday, June 1, 2014 at its usual time slot on HBO. Here is a preview promo video for this week's upcoming episode: