" If I can keep fighting,” she said, “then so can you.”
“Back to the stone,” he said in a harsh voice.
“I know you’re not a coward, Murtagh. Better to die than to live as a slave to one such as Galbatorix. At least then you might accomplish some good, and your name might be remembered with a measure of kindness after you’re gone.”
“Back to the stone,” he growled, grabbing her by the arm and dragging her over to the slab.
She allowed him to push her onto the ash-colored block, fasten the restraints around her wrists and ankles, and then tighten the strap around her head. When he finished, he stood looking at her, his eyes dark and wild, the lines of his body like cords stretched taut.
“You have to decide whether you are willing to risk your life in order to save yourself,” she said. “You and Thorn both. And you have to decide now, while there is still time. Ask yourself: what would Tornac have wanted you to do?”
Without answering, Murtagh extended his right arm and placed his hand upon the upper part of her chest, his palm hot against her skin. Her breath hitched at the shock of the contact.
Then, hardly louder than a whisper, he began to speak in the ancient language. As the strange words tumbled from his lips, her fear grew ever stronger.
He spoke for what seemed like minutes. She felt no different when he stopped, but that was neither a favorable nor an unfavorable sign where magic was concerned.
Cool air washed over the patch on her chest, chilling it as Murtagh lifted his hand away. He stepped back then and started to walk past her, toward the entrance of the chamber. She was about to call out to him--to ask what he had done to her--when he paused and said, “That should shield you from the pain of most any wound, but you’ll have to pretend otherwise, or Galbatorix will discover what I’ve done.”
And then he left.
“Thank you,” she whispered to the empty room. "

― Christopher Paolini , Inheritance (The Inheritance Cycle, #4)