Elves born in the Second and Third Ages are used to having the ruins of earlier eras scattered around the landscape being Aesthetic, and are disappointed that there aren’t any in Valinor.
So they deliberately build cities, attack them with siege weaponry, and abandon them. It only takes around two hundred years to get that Haunted Vibe!
Okay, but. Just.
“The people who arrived on the boats last week are building a new city,” is not news that’s going to surprise anyone. They’re welcome in one of the established cities, of course, but sometimes they need their own space, and the other elves in Valinor respect that. This is fine.
What is very much NOT fine is when a traveller frantically runs up to you and informs you that New!City elves are building massive amounts of siege weaponry, and you are, by far, the closest city around.
So you get your heavily harmed, very twitchy fellow survivors of the First Age together and head down there to have a … word. Just a word, but a very pointed one.
Except the New!City elves are all very excited to see you and want to know if you’re here to join in the fun because apparently they’re attacking their own city, which they emptied out for expressly this purpose.
You don’t know why. Maybe they’re bored?
It’s been a very long time since you operated a catapult. And it looks like such a fun catapult.
If the Valar show up, you’re not going to be the one who has to explain this, right?
The Valar do show up. Specifically, Aulë.
Someone convinces him to help them build a better catapult.
Aulë hasn’t had this much fun in literal ages. These elves are collaborating with him, in a way no one has since… well.
Before too long, the siege weaponry is far more elaborate than anything anyone would have come up with before, or on their own, and everyone is cheering as the first catapults and trebuchets and
ballistabegin firing at the completely empty city.
Elves turn into the Mythbusters in Valinor, film at 11
This is hysterical and awesome!
I am in many fandoms, but the Tolkien Fandom is by FAR the most creative with interpretive worldbuilding.