When Klaus left Caroline at their room, he followed Dara until the house. It wasn't far from there, so she went walking until her destination. Dara seemed to already know the place. Klaus was observing each step of her very carefully for not let himself get caught. Then, he finally saw this house, which seemed to have been burned, some place in the history, and Dara came in.
Klaus remained hidden, waiting for her to contact the witches' spirits. She really thought that Klaus' trusted her. But you don't live a thousand years without being one step ahead. He concentrated in his hearing and tried to pay attention to everything that could sound suspect. He tried to hear any sound but it was useless. Of course the witch used a spell for not being overheard. He looked at nowhere so angry. He had nothing left. Either he trusted the witch or didn't.
Angry himself for not having an advantage, he came back to the pension and found Caroline on their room.
"I couldn't hear her." He said to Caroline, "We have nothing." He seemed angry. She didn't said a word. All of her worries came back and she got nervous, fearing the worse.
"If she was telling the truth she wouldn't use a spell." Caroline said, Klaus looked at her. Caroline was right, something really strange was going on and they just couldn't figure it out. Klaus started to think really fast. This was not a good sign. He analised his alternatives. The best one he could think of was leave Spain and go back to Mystic Falls.
"She's not with us love, I know. I think we need to leave." Klaus said.
"What about Elena? We need the cure." Caroline was getting nervous.
"I know. But I can't risk it. She's a very powerful witch and she's not willing to help. Whatever she's planning is not a good thing and we are here alone, we can't just stay. I think we have to get back now."
"But Klaus, Elena needs the cure." Klaus got closer to Caroline fast and said, firmly
"We'll find another way." Klaus grabbed Carolines shoulders and the girl was left with no words. She understood the gravity of the situation and she started to fear Dara and what she wanted to do.
"Fine." She finally said.
"I'll prepare things on the car, you pack things. We need to leave fast, before she gets here." He glanced at her.
Klaus left Caroline packing everything while he went to the gas station in front of the pension and waited for the car get ready. Caroline was changing clothes when she felt a horrible headache. It was consuming her, supernaturally. She screamed, but nobody heard her. It felt like it was melting her brain. When she finally had the strength to look back she saw Dara, standing right in front of her, with a smile in her face.
"What are you doing?!" Caroline screamed.
"Oh love, it's time for you to do me a favour." She kept the smile while Caroline screamed. Then the girl finally passed out.
When Klaus left the gas station the car was already prepared. He went upstairs, to his room, to call Caroline, but when he oppened the door, she wasn't there.
"Caroline, love?" He asked. "Caroline?!", he asked again. Then the worst passed through his mind. He had an ideia what could have happened. He saw Caroline's daylight ring on the floor. He changed his expression immedialy, picked up the car and went to the witches' house.