Dear Thranduil,
Yes, you captured Gollum and kept him in your deepest dungeon, the one from which no living being could escape. We all know how well that worked out, don't we? It was like the dwarves all over again. At least they weren't heading straight to Mordor to give Sauron information about the One Ring.
But if you do manage to keep the Trio under guard, then all of middle earth will be in your debt, and I owe you a heartfelt apology.
Elrond Halfelven, Lord of Imladris
Dear Elrond,
How do I say this? The Trio have escaped. I suppose it is my fault really; I should have specified to the builders of my jail that prison cells shouldn't have escape tunnels. It is entirely possible that they may find themselves back at Rivendell – not, you must understand, because I sent them on that path. And I most certainly did not equip them with travelling supplies and a map. Definitely not.
Thranduil, Elvenking of Mirkwood
Dear Thranduil,
I hate you.
Elrond Halfelven, Lord of Imladris
Dear Treebeard,
How are things in Fangorn nowadays? I am sending you a wonderful musician trio to liven things up a bit.
Elrond Halfelven, Lord of Imladris
Dear Elrond,
Curse you, Elrond! Curse you, root and branch!
Treebeard
Dear Ada,
The battle for Helm's Deep is over. We won. Aragorn showed up just before the fighting began, but we had a bit of an argument over whether or not the men were going to die.
I must go, according to Gandalf, the battle for middle earth is about to begin.
Your loving son,
Legolas
Dear Elrond,
I fell off a cliff! A big one, too. And there was a river at the bottom. In fact, the only reason I survived was because of a friendly horse that came along and carried me back to Helm's Deep. I got back just in time for the massive battle against the forces of Isengard. We won, even though Legolas was so pessimistic.
Oh, and thanks for sending the elven archers. Haldir died, by the way.
Your loving adopted son,
Aragorn II Elessar