They were dead.
He knew how they had died, perhaps he had been there but he couldn't say for sure. They had been stabbed, in nearly the same spot, between two ribs.
He knew their names, Elladan and Elrohir, and he knew they were twins.
He noticed their skin, paler than it ever should have been, nearly tinged blue. He noticed the shocked expressions on their faces and the wide pale brown of their eyes. But above all, he noticed the blood. Redder than the sky at sunset, made an even deeper red by the light blue and gold tunics they wore.
He looked down. He saw his hands, the sword clenched at his side. The sword that was covered with blood.
"You killed them." It was a raspy voice, that he knew came with a grotesque burned and scarred face.
Dropping the sword, he screamed.
"What the -"
"Wake him up, Elrohir!"
Legolas awoke to a pair of chocolate-brown eyes staring concernedly at him. He sighed, more out of relief than anything else. "Elrohir."
The Elf in front of him nodded, his eyebrows raised and eyes wide as he waited for an explanation. "I - it was just a dream. I'm sorry I woke you."
"Truly, just any old dream?" Elrohir sounded disbelieving. His twin, Elladan, glanced suspiciously at Legolas.
"What was your mystery dream about?"
"I don't want to talk about it. Go back to sleep."
Legolas was haunted by this dream, but, as he lay back down under a large oak tree, Elrohir, closer to the Elf, knew he would never tell. Legolas never showed his weaknesses - which in itself was a weakness.
There was a silence, but it was not a comfortable one, as Elladan, Elrohir and Legolas all pretended to fall into a peaceful sleep.
Once Legolas was almost certain Elladan and Elrohir were asleep, he slipped away to think. Several good-sized feet away, he sat down and buried his face in his hands.
Why had that dream come? Tonight?
He couldn't - wouldn't - kill Elrohir, or Elladan. Ever.
He had hurt Aragorn, his best friend. He had stolen from his father. Because he knew if he didn't, the punishment would be ten times worse. Not for him, but for them.
But this?
The dream wasn't, as he had made it out to be to Elrohir, any old dream.
It was a warning.