"Drop it," the angel said, and Cas let his blade clatter to the ground. He blinked and swallowed, feeling the pressure of the knife tighten against his throat as he did.
"What are you doing here?" the angel asked again in a familiar voice. Rebekah. He knew her.
"I- I'm. . ." Cas started, but Rebekah took a step back, dragging Cas with her, the knife nicking him.
"Returning to heaven?" she answered for him. Rebekah's chin dipped close to his shoulder, her hair falling against his cheek. She let her tone deepen, her voice foreboding: "You aren't welcome here anymore."
Suddenly, Sam was in the room, brandishing his weapon. "Let him go," he insisted. The silhouettes of the trapped angels hovered over his right shoulder through the window.
Then, unexpectedly, the angel laughed. "Of course," she muttered bitingly, "I should have known it had something to do with the Winchester brothers."
Sam took a step forward, raising his hands up trying to appear non-threatening. "Look, we're just trying to find my brother. We're not here to stir things up."
"Is that true?" Rebekah asked bitterly, directing her words to Cas.
Cas's voice was strained when he replied, his chin still towards the ceiling. "Yes," he said decidedly.
Sam walked forward again, and Rebekah made a small incision on Cas's skin as warning. Sam stopped.
"Why would heaven even have Dean?" she aked slowly, letting the blade inch away slightly.
Cas relaxed his chin a little, speaking more normally now. "Not heaven," he corrected, "Naomi."
"Naomi?" she contended, "Naomi is dea-"
"Not dead," Sam interrupted. "She jumped past her death and came back to heaven with my brother. "
There was silence for a moment as this possibility sunk in. Cas looked up as he waited for Rebekah to think. The ceiling had intricate designs carved into it. His eyes followed the carefully laid out arrangement searching for either the beginning or end of it. White lines created fluid patterns over their heads, creating a maze-like symmetry above them guiding the observer to the end. But there wasn't an end. Only walls.
Cas squeezed his eyes tightly against the forms finding himself breathing more and more frantically. Suddenly, with both hands he grabbed the hand Rebekah used to hold her knife. His blood pumped loudly in his ears and he groaned as he strained to take back control. Yelling, he yanked her hands forward, pulling forcefully until he heard her screaming in pain. She dropped the knife out of her broken hand, but still Cas pulled, until he felt the weight of her flipping over his shoulder and watched her body hammering against the ground. She moaned while he picked up both blades, brandishing them in each hand. He bent one leg, kneeling it against Rebekah's chest, making her wheeze at the force of the newly added weight.
"Listen to me, Rebekah," he said darkly, "I don't want to hurt you. But I'm motivated," His voice started to break, "and desperate." Cas put the angel blades together crossing them between his hands. He rested them in a v against the other angel's throat. "We have your family," he said, nodding to the window where Sam's holy fire burned. "Now you are going to help me get mine."