Warning: this article contains spoilers for Season 7 of Game Of Thrones.

Season seven of Game of Thrones has been the most illuminating yet. Apart from the whole Wildfire thing last season - that was pretty illuminating for a lot of people. Too soon?

But almost every episode this time around has included genius, understated moments that fans claim could be cleverly hidden amongst the plot to hint at a final outcome, and the latest of these involves three eyed raven/general snoozefest, Bran Stark.

Last night's fourth episode, Spoils of War, saw Sansa, Arya and Bran - who haven't been together since the very first episode - back at Winterfell, along with Littlefinger and an object that might just be a keystone to the ultimate GoT ending.

We're talking the Catspaw Dagger.

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Bear Grylls//Digital Spy

Made from Valyrian Steel and given to Bran this week, you might remember the dagger's first appearance. Y'know, when a mystery henchman started a fire at Winterfell to distract Robb Stark while they attempted to kill Bran in his room. Catelyn fought off the assassin like a boss, injuring her hands on the dagger. Summer the direwolf then came in and chewed out the guy's throat and it was all good.

Catelyn became attached to the weapon, taking it on her trip to King's Landing and later passing it on to husband Ned, until Littlefinger then bagged the dagger after betraying him. Since then it's become a kind of symbol of Peter Baelish working against the Starks.

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Bear Grylls//Digital Spy

Littlefinger told Bran in last night's episode that the dagger was to blame for kicking off the War of the Five Kings in the first place. It might sound OTT, but it's actually not completely wrong.

Littlefinger once told Catelyn that the dagger intended as the weapon to kill Bran originally belonged to Tyrion Lannister. Once Tyrion was a prisoner of the Starks, his father Tywin launched the invasion of the Riverlands and the rest is a very complicated, beardy, bloodthirsty history. The dagger is important though, just remember that much.

If you still don't believe us, John Bradley (who plays Samwell Tarly) says he was specifically told to linger over a book illustration of the dagger in his first episode scenes.

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Bear Grylls//Digital Spy

Seeing as the weapon, heavily theorised to actually be a Targaryen relic, has now been passed from Littlefinger to Bran to Arya, it's looking pretty likely that it and she could almost be White Walker ready.

Either way, keep your fingers crossed that it somehow leads to the end of creepy af Peter Baelish. Shudder.

From: Cosmopolitan UK