Tintin gasped as she woke up in Lady Penelope's pink limo.

"Good afternoon dear!" Lady Penelope said brightly. "How are you feeling? You must be exhausted. You've had such a trying day. Well done on your first mission though. You did so well."

"And if I may interject, my lady, I would like to add that young Master Tracy now owes you his life, a few times over."

"Thank you, Parker. Very true though."

"Where are we going Lady P? The Island?"

"No, my dear, we are going to my London home. Jeff is having a party tonight in your honour and I am going to treat you. Besides I need my special party dress. I've been saving it for an event like this. The addition of new members to the team is always a thing of great gaiety and joy. Well sometimes. It definitely is in your case."

They pulled up to the large country estate. Parked beside Lady Penelope's other pink cars was a green army truck.

"Oh no. What's she doing here?"

"Who Lady P?"

"My sister. She's come for a visit, again."

"What's wrong with her?"

"Let us say that she is not quite as refined as a Lady should be."

"But she's your sister, how could she not be?"

Parker opened the door and helped them to get out. Tintin looked at the truck. It was very large and slightly more streamlined than your average army truck. She walked around to the back of it. It was open and a woman perched on the edge smoking a cigar. She was tall and thin but looked very muscular. Her hair was short and also blonde but not as light as her sisters' was. She was pretty but not beautiful, but Tintin liked her face. It seemed approachable and friendly. There was also a glint in her green eyes that made Tintin realise that this was a woman who was fun and young.

"Catherine! What have I told you about coming here?"

"I know Penny. And normally I would heed it. But I have news. Concerning your precious Jeff Tracey."

"Wait, does your sister know about the Thunderbirds then?"

"Well, yeah, I am one. McKenzie's broken out of jail again. He wants to sink your island, and the organisation on it. He wants revenge."

"Well if he does it's all your fault! You put him in prison in the first place!"

"He was going to blow me up! What was I supposed to do?"

"Try not endangering International Rescue!"

"For Pete's sake! We put our lives on the line every day! He wasn't just going to blow me up he was going to do both of us! And your precious island! If he could find it!"

"What did you do to his gang?"

"I locked them up in a different jail across the country. Far from him. He doesn't know which one. I think he might try to get them out, if he can, and then come after the Tracey's."

"How do you know what he will do?"

"Sweetie, he's my ex boyfriend. Of course I know what he's up to."

"I suppose. Anything else?"

"Yeah. Can I crash with you for a while? Please? He blew up my apartment block, again."

"You must have had a really bad break up if he's tried to kill you."

"Ugh! Bad doesn't cover it. I'll tell you sometime. Who are you by the way?"

"Oh, sorry. Catherine, this is Tintin Balargent daughter of…"

"Kyrano?"

"Yes. Tintin this is my little sister, Catherine."

"Call me Cath."

"Well you can stay but don't you dare smoke in the house. And stay out of my way. Lets get Tintin a bath. Parker? Have Marie fill my bath. Then we will go into town and get your hair done and I will fix your make up."

"Make up? How far do you want to go for a little party?"

"Don't you want Allan to ask you out? I thought so. And I want Jeff to do the same. The first step to catching any man is to look fabulous. And this we will do."

"Party?"

"You're not invited Cath. Most of the Tracey's don't know you exist. Lets not start now shall we?"

"Fine. I'm going to track McKenzie via my computer."

"She has no life, you see Tintin?"

"The reason you've survived to go to these parties is because I have no life. I spend all of it tracking and training so that I can protect you and the Thunderbirds. Go in and have your little parties. I prefer to work. While Tintin's having her bath why don't we spar a bit? I need some practice."

"Alright, I'll just go and change. You won't win sister. I am older than you."

"I'd like to test that theory. Be quick."

"Go into the gym."

They all entered the house. After Tintin had had her bath Parker took her to the gym balcony where she saw Cath and Lady P fighting so fast she could barely tell which blur was which. The only way, as Parker pointed out, was that Cath would never touch the colour pink and one blur was pale pink.

Cath lunged at Lady P and suddenly Lady P had her pinned to the floor.

"Your problem is that you take too many risks. You are good though, I'll give you that. Ah! Tintin. Let me freshen up and then we'll go. Parker bring the car around."