AN: This story is a continuation of my stories "Attack of the Ladurians", "By Your Side" and "The Collector" but you don't need to have read any of them to understand this story.

It is a crossover with Torchwood but it will be mainly about the Doctor Who characters. That's why I didn't put this into the crossover section.

A big thank you to Persiflage for beta-reading.

Disclaimer: I don't own Doctor Who

Chapter 1

Martha pushed the door of the TARDIS open and walked inside, the Doctor following close after her. They had just returned from answering a distress signal they had picked up on their way to an ice planet where they had intended to go ice skating. The signal had come from a space ship in the 58th century that had been severely damaged and was close to being pulled into a black hole. Martha had helped a number of crew members who had been injured, while the Doctor had repaired the ship and had pulled it away from the black hole with his TARDIS. The ship was now back on its way to Earth and its crew was recovering. It had been a long and tiring day, but Martha had enjoyed the opportunity to help others the way she had always wanted to. Travelling with the Doctor was wonderful but she sometimes missed being a doctor.

Martha walked towards the jump seat and slumped down onto it.

"So, do you want to go ice skating now?" the Doctor asked her from the other side of the console where he leaned against one of the coral columns and smiled brightly at her.

"I feel more like taking a long nice bath and watching a movie for the rest of the day," Martha answered. She thought that after all the work they had done today it was their right to relax for a couple of hours, but of course the Doctor still wanted to go ice skating. Martha wasn't sure if he even knew what the word 'relaxation' meant.

"Oh come on, it will be fun. We can take that bath later." He walked towards her and sat down on the jump seat next to her. Then he reached out and took her hand while giving her his best puppy look she always found hard to resist.

"I'll even show you how to pilot the TARDIS."

"Really, you'll let me fly your ship?" Martha asked excitedly. She had always wanted to pilot the ancient ship but she had never asked because she knew how much the ship meant to the Doctor. It was all he had left from his home world.

"Sure, what do you say?"
"Alright, but we won't stay to long. I'm already tired," Martha finally relented. The Doctor grinned brightly at her and stood up, pulling her with him.

For the next hour the Doctor explained to her the purpose of every lever and button on the console. Martha got constantly more excited in the prospect of actually flying the ancient ship, and she felt the tiredness slowly leaving her. When she finally knew every function of the console she began to fly the TARDIS slowly through the vortex while the Doctor stood behind her looking over her shoulder and correcting her sometimes. A few minutes later Martha carefully landed the ship on the ice planet next to a frozen lake.

"Well done!" the Doctor said. "I'm proud of you!"

Martha turned around to look at him with a bright smile on her face. "I think I flew her actually better than you do. It was a much smoother flight than usual."

"Much more boring I'd say," the Doctor said. He put his arms around her waist and pulled her close. His lips touched hers in a soft kiss. After a moment he pulled away and grinned at her again. "Let's go ice skating!"

Before Martha could answer her mobile started to vibrate in her pocket. She pulled it out to look at the display.

"I don't recognise the number" she said frowning. Then she accepted the call and put the mobile to her ear. "Hello?" She asked.

"Nightingale!" came a voice she easily recognized through the phone. "How are you?"

"Jack? How did you get my number?" she asked.

The Doctor looked at her and raised an eyebrow.

"Your sister gave it to me. I kept in contact with her after the Year," Jack explained. "Listen, I need yours and the Doctor's help. Can you come to Cardiff?"

...

A short time later the TARDIS landed inside the Torchwood Hub. Martha and the Doctor stepped out of the door and immediately caught sight of Jack, who was coming down the stairs from the upper level, closely followed by a young man wearing a suit and a woman with long black hair.

Jack stopped in front of them with his trademark grin on his face.

"I'm glad you could come," he said, then he turned around to his two team members. "Guys, this is the lovely Dr. Martha Jones," he said indicating Martha. "And this is the Doctor." The Doctor and Martha shook hands with the other two, who introduced themselves as Gwen Cooper and Ianto Jones. Ianto regarded the Doctor with some interest and then left to get coffee for everyone. Gwen went to a nearby computer to check something.

"You're looking good, both of you!" Jack said grinning at them. "Tish told me you had got a little closer since you're travelling together again but she didn't want to tell me the details."

"And it's better that way," Martha said.

"Why did you call us here?" the Doctor asked.

"We have some trouble handling a problem." Jack explained. "There have been twenty-five deaths in the city in the last week, all of them involving theses strange energy creatures. They have come through the Rift. I've never seen a similar life-form before. We don't know how they kill or why, and we can't track them. That's why we need your help, Doctor. If anyone can find out what these creatures are, it's you. And we lost two of our team recently, one of them our medic, that's why we need Martha's help to carry out an autopsy on the bodies."

The Doctor nodded. "Show us everything you've found out about the creatures so far," he said.

AN: Thanks for reading. I hope you enjoyed it.

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