Alert the Council of Elrond! For the first time in history,Stephen Colberthas been stumped by aLord of the Ringsquestion. And it came courtesy of actorRyan Gosling.GoslingjoinedRussell Croweon a recent episode ofThe Late Showto promote his new P.I. comedyThe Nice Guys. Only, the actor came packing a secret weapon in his back pocket. We have the full video below to prove this monumental moment truly happened.

As any fan ofStephen Colbertknows, he is an aficionado of all things Middle-Earth. The man is a Shire wizard of knowledge. He even appeared in one ofThe Hobbitmovies! Ahead ofBattle of the Five Armies, Colbert graced the cover ofEntertainment Weeklydressed as a variety of characters, including Gandalf, Legolas, and Bilbo. And it was the talk show host’s vast understanding ofJ.R.R. Tolkien’s works that truly captured the heart ofRyan Gosling’s mom.

AsGoslingtells it, his mother has been a big fan ofStephen Colbertfor years. But that wasn’t always the case. She did not originally like his brand of political satire. But when she saw him compete againstJames Francoin aLord of the Ringstrivia contest, and take it home, the man won her heart.

It was actuallyRyan Gosling’s mom that wrote theLord of the Ringstrivia question that finally stumpedColbert. She instructed her son to take it to him, and destroy him!Stephennervously crossed himself before attempting to answer the question. This is whatRyan Goslingasks of the master.

“In TheFellowship of the Ring, Being the First Part ofThe Lord of the Rings, full title, Gandalf is trying to find the dwarf doors of Moria, and an archway appears on the rockface. Do you remember that? My question is: the archway appears on… what page?”

And there you have it. The question that finally killed off the master!Stephen Colbertwas unable to answer this very hard question. All he could do was hang his head, spin in his chair, and try to launch off the sting of defeat. Triumphant in his quest to bringColbertto his knees,Goslingjumped up and high fives hisNice Guysco-starRussell Crowe. Now,Ryan Goslingstands as the only person to every publicly stumpColbertonLord of the RingsandHobbittrivia. you may watch the entire incident play out in the video below. But be warned, it’s not pretty.