Sarah focused her attention on the Doctor's food tray and extended her arm toward it, still not quite sure what she expected to do. To her frustration, nothing happened.

"Come on, Sarah. Concentrate," the Doctor said.

"I'm concentrate, but exactly what you want me to do?" the girl asked.

"Anything. Try to lift the napkin. It's small."

Then the journalist was concentrated on the napkin and made a slight gesture upward with her arm. Still nothing happened.

"You can do it, my dear. Cheer up," the Doctor said quietly to not break the concentration of the girl.

Again she moved her arm to the napkin without it made the least movement. In the face of girl you could see her disappointment.

"Don't give up, Sarah."

"I can't even move the tip of the corner," she said in a voice almost defeated.

"You did it before with Juun. Remember what you felt then, what led you to act that way."

"She was going to attack you ... I wanted to stop it."

"Very well. If you can't control your power today Juun and her servants will feed not only on me but also on the other prisoners again. Do you want this?" the Doctor asked seriously.

"I don't," she replied.

"So, what do you want?"

"I want to help you."

"Say it again," the gallifreyan urged.

"I want to help you, I want to help you, I want to help you, I want to help you!"

The napkin began to rise into the air slowly, to the delight of the young journalist.

"Look, Doctor, I've made it!" she exclaimed happy.

"Good girl," said the Doctor, smiling.

But before the eyes of the travellers the napkin began to tear and fell in two halves.

"Why?" the girl asked, again saddened by the failure.

"Your focus is not complete. But this is fine if you want to have two Lady Juun," the Doctor said looking at the two halves of the napkin.

"I don't want to do that!" she said horrified at the idea.

"I know, I know. Just kidding. Try again," the voice of the Time Lord was gentle.

Sarah levitated again one of the halves and held it a few seconds in the air. Seeing that nothing happened she slightly moved her arm to make the napkin also moved from side to side. Everything seemed to go well until it came to tear.

"Every time you glad for an achieving you break the concentration and fail," the gallifreyan observed. "Stay focused all the time; don't think if you're doing it right or wrong."

Sarah nodded and repeated the same with the other half of the napkin. She got the piece of fabric made a tour of the cell and come back on the tray.

"Wonderful, Sarah," the Doctor said.

She smiled and then focused on the crystal glass. She had managed to dominate the levitation of the fabric and now she wanted to try something a little harder. With a little more effort on her part, the glass began to float slightly above the tray.

"You're doing fine. Concentration is the key," he whispered.

"Shhhh."

"Sorry."

She lifted up her arm gently so that the glass raised more and made light moves from one side to another to move it. It seemed that she was achieving satisfactory results when the glass blew up into small fragments.

"Look out! This is dangerous," exclaimed the Doctor, who dodged the sharp crystals for very little.

"I'm sorry! Are you okay?" Sarah apologized worried about her partner.

"I am. Keep trying."

"Are you sure? Next time maybe I end up hurting you."

"Sarah, if you don't get it there won't be next time," the Doctor reminded her.

The young journalist moved her arms in the air to collect the fragments of glass and put them in a corner of the cell. Then she focused on the plate and tried to do it dance in the air before the fearful look of the Time Lord, who expected a new explosion of ceramics. The plate didn't explode. Sarah deposited it gently on the tray. She smirked and decided to try the hardest yet: the water pitcher. If the girl noticed the Doctor's look of fear, she ignored it. She had to do it for him, for the prisoners and for herself. She focused on her desire to help and began to lift the pitcher first weak and shaky, then with gentle but determined movements. She moved it around the cell. At that moment there were only the pitcher and her. She was not aware of anything around her. She was not aware of the movements of the Doctor to move away from the route of the pitcher. The glass container returned to its place, intact.

"I think I've got it, Doctor. Look", the girl said jolly, extending her hand to the Time Lord, who was kneeling in front of her.

"Sarah, my dear, what are you going to do? You're pointing at me," he asked nervously.

"Do you trust me?" she asked quietly.

"Of course I do."

"Then let me do."

Sarah made a quick movement of her arm from bottom to top, unbuttoning the Doctor's shirt. The gallifreyan felt his shirt and torso.

"I am unharmed ... and the shirt is intact ... You got it, Sarah! You've controlled your energy perfectly."

She winked at him panting, clearly exhausted by the spending of energy than those exercises had caused her. Thaddeus laughed mockingly.

"What happens?" the Doctor asked.

"You're so cute, girl. But do you really think this will be enough to defeat Lady Juun?" the man said without abandoning his mocking tone.

"He's right, Doctor. Lady Juun is very powerful," Sarah said, back to reality.

"But you have something she hasn't," he said smiling.

"What?" she asked intrigued. The Doctor approached her.

"A Time Lord who fully trusts you," he replied, bringing his lips to hers and kissing her passionately.

She kissed him back, but she suddenly stopped.

"Eh! Is this another of your tricks to make me feed?" she asked.

"Shut up and eat."