What's up with the spooky sword in Lord of the Rings: The Rings of Power?

gamesradar.com:

Warning: This story contains spoilers from The Lord of the Rings: The Rings of Power episodes 1 and 2. If you’ve not seen them yet, don’t read any further!

There's a lot unfolding in the first two episodes of The Lord of the Rings: The Rings of Power. However, one of the most intriguing storylines concerns the young human boy Theo – and the mysterious sword he’s found. After exploring a barn in his village, Theo happens upon a broken hilt of a weapon. When he goes back to pick it up with a friend, Theo spots an intriguing symbol that ignites and shines.

Of course, viewers who have been paying attention will recognize the mark of Sauron, seen earlier in the episode engraved on Galadriel’s brother. Theo takes the sword home and we don’t get another glimpse of the weapon until the end of episode 2. As Theo is packing his belongings following the Orc attack, he holds the sword once again and a drop of his blood runs towards Sauron's mark. When it touches the blade, it erupts into smoke and the blade starts building itself. 

So just what is going on with this sword? No doubt, this will play a crucial part of The Rings of Power overarching narrative, but some viewers have already begun speculating about the blade's true meaning.

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There's some speculation that it could be Sauron’s own swords, used during the so-called "War of Wrath" when he was Morgoth’s general. This is a possibility given the sword was found in the Southlands, an area where many of the humans were allied with Morgoth. A lot has been made of their former treachery in the show – it's the reason Arondir and his fellow Elven soldiers are stationed there.

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