Clara enjoyed to travel with Doctor. Thanks to him she met Jane Austen – the person she admired so much. She also proved him that Robin Hood wasn't only a legend.
But there was something that she wanted so badly – to go to the Titanic. She wanted to see what really caused the tragedy.
So, when was her next time to chose, she chose that – Titanic, April 14th 1912.
Doctor knew very well that that date was the date when Titanic sank, he's been there so many times. But never with Clara.
He decided to take her there.
After they landed with TARDIS in the basement, they went up. The sun was already down and Titanic was counting his last hours.
Clara was looking at those peaceful people who had no idea that something horrible is going to happen to them in only few hours.
She wanted to stop the catastrophe. But after she looked her best friend, his facial expression was telling:"Don't!".
Why? Clara didn't understand how Doctor who was able to stop anything if he wanted, didn't want to help these poor people.
Like he red her mind, he started to talk. "Sometimes, we're only a passengers through the lives of the other people. We don't even say a word to some of them. But, most important, we don't have right to mix into a decisions that has been already made long before we knew about them. I don't have right to change the past or the destiny. That's been already decided by the forces stronger than anybody – human or alien."
Clara understood Doctor. But, still, she was sad because all of this is gonna be at the bottom of the Atlantic Ocean in a few hours from now. Not to mention all of the people who will lost their lives this night.
She knew perfectly well that nobody, not even the Doctor can change the past. And now she knew why. Because the balance in the world consisted from everything that was happening daily. And that everything, good or bad, happens with a reason.
She couldn't stay to see how the Titanic is hitting the ice berg like she planed in the begin and Doctor completely understood her.
Before she returned to TARDIS, Clara looked once again into the crowd of the happy people.
The tear dropped from the angle of her eye.