Spoiler alert: If you’re not caught up on HBO's Game of Thrones, we’re about to unleash a handful of spoilers. So you’ll want to stop reading now and come back when you’re all caught up.

In the seven years since Game of Thrones first made its small-screen debut on HBO, viewers and observers alike have been treated to a seemingly never-ending stream of fan theories that attempt to figure out where the show’s narrative is heading. While some of these predictions have been a bit of a stretch, we’ve watched as some others have come true. One question that continues to be asked, and the answer guessed at, is: Who is The Prince That Was Promised, a.k.a. Azor Ahai, a.k.a. the prophesized savior of the Game of Thrones universe? While this Prince (or Princess—the translation leaves open the option for both) has been guessed as being everyone from Jon Snow to Daenerys Targaryen, Redditor MrSilenceT—whose clever theories we have covered before—has another contender for the role: sweet, lovable Samwell Tarly.

In a series of meticulously detailed Reddit posts, MrSilenceT laid out the reasoning behind his belief that Samwell could ultimately be the one to save the day in Westeros. And it rests on one assumption: that Sam is not the son of that awful Randyll Tarly, whom we met briefly in season seven. No, MrSilenceT posits that Sam is actually the offspring of Rhaegar Targaryen and his first wife, Elia Martell. If true, this would make Sam the nephew of Daenerys, the half-brother of Jon Snow, and therefore a member of House Targaryen—and the possible third head of that oft-discussed three-headed dragon, which will ride into war and purportedly put a period on who is the rightful heir to the Iron Throne.

According to MrSilenceT’s theory:

"The third head is no one else than Aegon Targaryen, first son of Rhaegar & Elia Martell, that had truly been smuggled by Varys. After Robert's Rebellion, Varys could not afford to lose the little Prince. To protect him, Varys sent baby Aegon to be fostered by one of the strongest and most faithful supporters of the Targaryen reign, to the man that had inflicted Robert his only defeat at the Battle of Ashford, Lord Randyll Tarly."

He goes on to use A Game of Thrones creator George R.R. Martin’s own words to support this idea, even if it might be a bit of a stretch. During a Q&A for the Emmy Awards in 2013, the author was asked which character he would play on the show; he answered that he actually already does play all the characters when he writes them. “But if they actually had to film me, I guess the only one that I could play would be Samwell Tarly,” Martin said. (Though Hot Pie got an honorable mention.)

Though most people listening to Martin probably dismissed his words as little more than a lighthearted response to a lighthearted question, MrSilenceT believes this was a subtle allusion to a conversation Rhaegar and Elia had about their son, with Rhaegar stating that, “He is the prince that was promised, and his is the song of ice and fire.” In other words, according to the Redditor:

"Therefore ladies and gentlemen, George is the true prince that was promised and his book is the song of Ice and Fire! Sam, a.k.a. George R.R. Martin, is destined to lead mankind in its war against darkness (ignorance) by wielding a sword known as Lightbringer (the book of A Song Of Ice And Fire) …

"Samwell had inherited his mother's Dornish looks and most of her character: kind and clever, with a gentle heart and a sweet wit, though with a delicate health; exactly like Ser Barristan Selmy had described Elia. From his father, Sam had inherited Rhaegar's love for books and songs instead of his ability for battle. Lord Randyll, being the Tarly that he is, tried his best to raise the young Prince as a fighter. But even after giving it his all, poor Sam could not do it. His training was proving a failure. And to cope with the stress and the pain, Sam hid behind food ..."

Could Samwell Tarly be the hero we’ve been waiting for all along? You can read the full theory here. And since you’ve got a good year to ponder that question until the series returns for its final season, maybe now’s the time to re-watch the entire thing and see if you can find any other hints that point to Sam’s possibly princely identity.