Petyr Baelish (a.k.a. Littlefinger) was arguably one of the best-written characters in "Game of Thrones." His death scene, on the other hand, was disappointing, to say the least. After all, Littlefinger was supposed to be this great manipulator whose schemes tore the Seven Kingdoms apart, and yet he was taken down in the most miserable way possible, on his knees, crying, begging for his life, outmaneuvered by the bunch of kids. The special kids we all know and love, yes, but the kids nonetheless.

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But it is what it is. The Stark children got their revenge, Littlefinger is no more, so what could possibly go wrong?

Well, according to YouTube user Gray Area [VIDEO], who just happens to be one of the best "Game of Thrones" and "A Song of Ice and Fire" theorists out there, the Stark children could very well be in trouble in Season 8 because of something she called "Littlefinger's curse." So, without further ado, let's see what exactly it is all about.

'Something that the gods can't forgive'

Littlefinger's curse, as Gray Area points out, is all about breaking the guest right, a sacred law of hospitality that dates back thousands of years to the First Men. Guest right is, in case you didn't notice, quite a big deal in Westeros and no one takes this ancient custom more seriously than the Northerners, especially the Starks of Winterfell.

Some examples of breaking the guest right in "Game of Thrones" include the events such as the mutiny at Craster's keep, and most notably the Red Wedding. Karl Tanner, the self-proclaimed legend of Gin Alley, met a horrible demise after killing Craster under his roof. And so did Walder Frey after the Red Wedding. One could argue that Olenna Tyrell, broke the guest right when she poisoned Joffrey, and we all know how that turned out for her.

Let's not forget the story of the Rat Cook that Bran conveniently told us about right after the Red Wedding, foreshadowing what will eventually happen to Walder Frey, a few seasons later.

"It's about the cook at the ancient Night's Watch castle of Nightfort," Bran recalled one of Old Nan's stories. The cook was angry at the Andal king for some unknown reason, so much so that he killed the king's son and in a true Arya fashion baked him into a big pie, that he served to the king. What's even more horrifying is that the king liked the taste of his son so much that he asked for a second slice.

According to the legend, the gods then turned the cook into a giant white rat, who could only eat his own young and no matter what he did, he was always hungry. "It wasn't for murder the gods cursed the rat cook," Bran explained, "he killed a guest beneath his roof and that's something that the gods can't forgive." That scene is depicted in the clip below.

The story is as interesting as it is horrifying, and who knows, we might get to see what really happened in the upcoming "Game of Thrones" successor show [VIDEO] about the Age of Heroes and the descent into the Long Night, with a pilot already greenlit by HBO.

Now, with that said, let's see why Littlefinger's death could mean trouble for the Stark children in "Game of Thrones" Season 8.

The possible consequences of Littlefinger's death

No matter how much Littlefinger deserved to die, he was still a guest in Winterfell, he had slept under their roof, ate their food, and thus he was protected by the guest right. Sure, one could argue that the Starks didn't really kill him because he was put on a trial and all, but let's be honest for a second. A trial in which Sansa was the judge, jury, and the executioner (Arya was an executioner, but you get the point) isn't exactly something that you would call fair.

Besides, as Gray Area wonders in her video, what's the point of having guest right laws if they don't apply to bad deeds that you have done in the past? After all, as Maester Aemon would put it, "we all do our duty when there is no cost to it, honor comes easy then." Sure, good old Aemon was referring to the Night's Watch vows here, but the same could be said for the guest right law, and any law for that matter, don't you think?

The bottom line is that the whole point of guest right law is to protect people who had slept under your roof and ate your food, no matter how bad they are. And the Stark children violated guest right by killing Littlefinger, which in the world of "Game of Thrones," usually means death.