Thor: The Dark World — Deleted Scene
Thor glared at his brother then shut down the energy barrier and entered his cell.
“What have you done?!” Thor yelled.
“Read, mostly. Pythagoras,” he said. “Earlier I had a bowl of gruel,” Loki said sarcastically. Thor stood mere inches from his brother’s face, seething with rage. More explosions occurred aboveground, and Loki glanced upward. “Don’t you think you ought to look into that?” he said. Thor scowled at his brother, then strode off toward the stairs. Loki watched his brother leave, a hint of guilt in his eyes. What had he done?
— Thor: The Dark World Junior Novelisation