Obviously,Stephen Colbert, one of the most vocal celebrityLord of the Ringsfans, brought up J.R.R.
Tolkiens world whenLiv Tylercame onThe Late ShowThursday night.
But it turned out she had a gift for him.

Scott Kowalchyk/CBS
The actress, who can beseen currently in HulusHarlots, brought the prop sword she used as Arwen.
That gave Colbert an idea.
Would you indulge in a fantasy of mine?
the host asked after holding the sword in his hands.
Tyler did indulge him.
Colbert orchestrated a reenactment of Arwen and Frodos scene by the river as they faced the Ringwraiths.
Then, in a moment that earned a Whoo!
from Colbert, she uttered the elvish enchantment she used to summon a flood that swallowed the Nazgul.
We bet Colbert is pretty stoked about that.
Watch their reenactment in the clip above, starting at the 3:01 mark.