Hi guys! So thanks so much for all the positive reviews, I'm so glad that people actually like it. So here it is; chapter four, the last instalment of this story. I hope you guys like it and I hope it's just as good as the other chapters. I'd also like to kinda dedicate this chapter, and the rest of the story, to a friend that's having a crap time at the moment. I hope this cheers her up.

Disclaimer: I do not own any of the characters, story lines or planets in Dr Who.

Chapter 4

Donna stepped out of the TARDIS, knowing she had just eight minutes to live, seven and a half minutes to get the Doctor in TARDIS and seven and a quarter minutes to say all she had to.

"Alright" she said to both the Doctor and to all the Daleks surrounding them.

"Donna!" cried the Doctor, "What are you doing?!" he asked in horror.

"Saving your life Spaceman!" she replied with sass. "Now, I have roughly seven minutes to give you lot a stern talking to. Why is it always Earth? Pride? Stupidity? Because you like annoying us?" she asked the Daleks, "Because you know it's protected. Every time you try to invade and kill everyone you fail and we win. And do you want to know why that is? Because we're human and we have the Doctor. And, unlike you, the Doctor learns from us. Humans are always coming up with back-up plans, sacrifices and always know we might fail, so we take a chance. You lot, well, you come in firing your guns, so arrogant that you're gonna win and kill everyone like that" she clicked her fingers, "but you never think you'll fail, you never have a back-up plan and that's why you're going to fail, yet again. You've no idea what you'd do if someone were able to stop you. The only way that that bomb is going to explode is if one of you is still connected to it. Similarly, if that bomb stops working it also stops the life support to the rest of the Daleks on Earth. And that's why I'm going to stop you and why you're going to fail AGAIN!" she finished with a yell.

She checked her watch, one minute left.

"Get in the TARDIS Doctor." She whispered to him.

"No, I can't leave you" he replied in earnest.

"Shut up Spaceman and get in the TARDIS!" she replied with anger and pushed him toward the TARDIS.

"Fine, but Donna?" he said.

"Yes?" she replied, knowing he was about to be sentimental the tears sprung to her eyes.

"Thank you. Thank you so much. We had the best, the best of times. I'll never forget them or you. Thank you so much" the Doctor choked out, fighting back tears until one rolled down his cheek. He turned to the TARDIS and stepped inside. TheTARDIS began to travel. Thworp, thworp, thworp. And disappeared from Donna's and the Daleks' view.

"So human, what do you plan to do?" the bright green Dalek croaked.

"Oh just-just you wait and see" Donna replied, her tears now fully flowing down her face as she began to sob. She looked at her watch which she had synced with the TARDIS timer earlier.

Ten

Nine

Eight

Seven

Six

Five

Four

Three

Two

One

"Bye boys!" Donna cried to the Heavens as her body ripped apart from the inside of her head, blowing her outwards and releasing meta-biological energy everywhere within ten miles, frying all the Daleks around her and in the area and destroying the life support bomb that would have destroyed the Earth. Simultaneously, every Dalek on Earth exploded in a ball of fire.

Earth rejoiced. No one knew that a wonderful ginger woman had saved the Earth from destruction. Except two men.

Back in Chiswick, Wilfred Mott knew that Donna wouldn't be coming home, she'd saved the world. By paying the ultimate sacrifice. Rather than grief and anger, Wilf felt a sense of pride toward his granddaughter and happiness. Because he knew that she had spent her last moments with the Doctor, and he wouldn't wish any other man to be with her at the end.

On Mars, however, a tall man with brown spiky hair in a blue suit and brown trench coat lay on the floor of a police box that was bigger on the inside, sobbing.

"Donna, Donna" he whispered over and over. He loved her so much and wished he could get her back somehow. But he knew he couldn't. He pulled himself up and pulled a lever, revealing a note behind it.

It read

"Dear Doctor,

By the time you read this I'll be dead, but I'd like to thank you for all the adventures we had together. You made my life so much more interesting and it was so fun.

I'm sorry it had to end like this but you'll be okay in the end, I'm not that important.

Have fun Spaceman,

All my love,

Donna"

The end