The Doctor knew time had run out for River and Aderyn. But he tried to keep on with normal life while he waited. He knew Aderyn would want some company at some point when she would really need help. But what help could he be? Well, none. He hadn't coped well when he had lost Rose. But River and Aderyn had been married and he had once overheard a conversation between the two. They had talked about settling down properly, getting a place of their own and a pet. River had even mentioned a desire to adopt a kid. This was far more involved then he and Rose had been. He headn't been helpful, or even a good parent, when the Ponds had gone. And this would be slightly more heart breaking for Aderyn then that.
"Doctor, are you okay?" Clara asked, looking round the console at him. He'd spent the past few minutes staring, unseeing, at the controls.
"Yes, sorry. I'm just expecting something to happen." The Doctor muttered.
"Something good?"
The Doctor shook his head sadly "I wish it was."
"Then what is it?" Clara asked kindly.
The Doctor sighed "Aderyn's wife is about to die."
"How do you know that?" Clara asked slowly.
"It's very complicated," The Doctor took the psychic paper from inside his pocket, looked at it then put it back. He paced around the console and threw himself onto the chair. He jiggled his leg nervously. "Her time stream runs in the opposite direction. The first day we met her, she died to save Aderyn. We had no idea who she was. If you told me then that she would marry Aderyn in the future, I wouldn't have believed you. But they started dating, got to know each other. They got married in the middle of a combat zone then planned a proper wedding. I wish I could have been there for that one. She saved our lives so many times. Saved Aderyn more times then she would admit to."
"What's going to happen?" Clara sat next to him. It was odd seeing the Doctor so sad and not at all enthusiastic or jumping around.
"She'll go to the library and hook herself up to a mainframe to stop a self destruct sequence. It's difficult to explain," He said quietly. The TARDIS wheezed and the time rotor sprang into life. The Doctor ran to the console, fiddling with the scanner. "This is it. The TARDIS is taking us to her."
_
Aderyn heard the TARDIS materialise. She ran into the back garden and straight into the TARDIS.
As soon as they had landed, the Doctor headed for the door. He was most of the way there when it was thrown open and Aderyn ran in. He caught a brief glimpse of her exhausted, tear streaked face before she buried it in his jacket. He put his arms around her and softened her fall as she sank to her knees, crying uncontrollably.