Italics are flashbacks to what happened to Brooke, in case you hadn't figured that out by now.
Her shoulder hurt as if she had been lying on her side too long. The cold floor pressed into her side. She rolled over, blinking against the pain in her head. "So you're awake," a voice spoke from somewhere to Brooke's left. She sat up to face the man. He sat in a chair in the corner of the empty room, leaning back on two legs of the chair.
"You b…" Brooke made a lunge for him, but was held back by the chains around her ankles. "You shackled me?!" Brooke asked in disbelief.
"I figured that you'd be a little feisty. And I've got to say I'm glad I was right." He set his chair down and got up. Brooke reached down to her pocket, scrambling for her cell phone. "You really think I'd be that dumb? I had plenty of time to search you while you were sleeping. You know that drug lasted a little longer than I had expected. I'll have to take that into account next time," he mused to himself. Brooke struggled against the shackles on her ankles.
"Next time? If you survive this time."
"Oh baby don't be like that, all jealous." He stood next to her. "She won't be as pretty as you." He tucked a strand of her hair behind her ear. She spat in his face. "You know I was going to leave your top half free, but you're going to need to be punished for that." He turned and seized some rope. She struggled, trying to shake him off as he grabbed her wrists, pulling them behind her back. The rope dug into her wrists as he pulled it tightly into a knot. He gave it another tug to ensure that she could not slip out of it. Then he turned to go, but stopped. "You know I don't think that that will teach you your lesson." A sharp pain shot across Brooke's face as he struck her. "Now I'll be back for you later." He kissed the top of her head and then walked out the room. Brooke heard the click of one lock and then a second one.
Immediately, Brooke turned to the wall where the shackle was placed. She tugged on the chain trying to pull it out of the wall. She pulled her foot, trying to get it out of the shackle. Nothing budged. Brooke stopped trying and looked around the room. A glint caught her eye, a rock sat in the corner. Lying on her stomach, Brooke wiggled towards it. Brooke's chain creaked as she reached the end of it and yet her fingers were still inches from the rock. With insight, Brooke pulled her belt off, throwing one end of it towards the rock. After a couple of attempts, the rock was hooked. Brooke pulled it towards her. She was getting out of here and she was going to call the cops on this guy. She lifted the rock and began to hack away at her shackle. When that didn't work she hurled the rock at the attachment on the wall. Again and again she hurled it until she began to breathe heavily and she threw the rock aside, exhausted and frustrated. Realizing that she couldn't get out of this on her own, she began screaming.
After a few minutes of screaming Jack came back, throwing the door open. "Shut up! No one can hear you." Brooke continued to scream. Jack stormed towards her, a gag in his hand. He shoved it in her mouth, whispering in her ear. "This is just for now. When I kill you I'll want to hear you scream as I see the life leave your eyes." His eyes saw the rock. He grinned. "That a girl, you fight." He began to walk out. "Oh I almost forgot." He backhanded her. "Oh and here, got to keep your strength up." Jack threw a scrap of bread to her over his shoulder as he left the room. Brooke touched her stinging cheek before reaching towards the bread. Keep her strength up? With this measly crumb? And yet Brooke ate it eagerly. She crawled across the floor to the wall and leaned her head against it. Tears fell from her eyes. The drug had still not worn off completely and she was tired. She closed her eyes and tried to forget where she was.