They'd been here before, hadn't they? River and Amy and the Doctor and he—and the astronaut.

"Whatever happens now, you do not interfere."

But Rory remembered a shot from the astronaut and another and his wife wailing over the Time Lord's body. He ran up to the Doctor, knocking him over just as the astronaut fired.

"Rory?' The Doctor gasped. "You shouldn't… shouldn't have done that."

Rory stared at the suit. "Who are you? Just tell me, who are you?"

The visor slid up.

Rory took a step backwards. "You?'

A frown of intense concentration crept across the astronaut's face, but the programming was too strong. It fired again.

"Rory!" Amy screamed; in this timeline, River didn't hold her back. Amy ran, nearly falling on the sand besides him. "Rory, talk to me you stupid idiot!"

"Amy. I love you."

"Doctor, Doctor do something!" Amy felt for a pulse.

"It's a fixed point that a legend would die here. A mighty warrior, older than he appears, who would never abandon the ones he loves." The Doctor turned away. "But it was supposed to be me."

Amy stumbled to her feet, glaring up at the motionless astronaut. "Who do you think you are, you-"

No.

No, it couldn't be.

"River?" The word was barely audible. "But you were just there—with us—" Amy gestured to the picnic blanket: empty.

Amy's daughter had murdered her own father. You killed a man?

The best man I've ever known.

The world's edges blurred. "Doctor," she whispered. "Help me." But as her mind fled, Amy Pond knew two—no, three- things.

She would never forgive them for this.

She could never go back home.

She would stay in the TARDIS until she died.