"No, I'm not doolally," Idris argued, breaking away from Auntie and Uncle, "I'mmm . . . I'mmm . . . . It's on the tip of my tongue . . . . I've just had a new idea about kissing. Come here, you!" She ran after the Doctor.
"Idris, no, no!" Auntie shouted.
"No!" the Doctor shouted. He jumped into the air and flew away. To his horror, he realized Idris was flying right behind him. "You can fly?!"
"Of course I can fly! I've always been able to fly. We fly together for centuries! We have flown . . . we will fly . . . ."
The Doctor flew around desperately, unable to shake the crazy woman. "I don't know what you're talking about!" He dove to Amy and Rory and hid behind them.
Idris landed in front of them. "Oh, but now you're angry. No, you're not. You will be angry. The little boxes will make you angry."
The Doctor stepped forward. "Sorry? The little what? Boxes?"
Idris laughed. "Your chin is hilarious!" She pinched his chin and suddenly looked at Rory. "It means the smell of dust after rain."
"What does?" Rory asked, bewildered.
"Petrichor."
"But I didn't ask."
"Not yet. But you will."
"Ooh, sorry, do you have a name?" the Doctor asked.
"Seven-hundred years, he finally asks," Idris said.
"But what do I call you?"
"I think you call me . . . Sexy."
The Doctor leaned in, slightly embarrassed. "Only when we're alone!" he whispered.
"We are alone!"
The Doctor looked at her, smiling. He bent down and picked her up. "Come on then, Sexy." He flew out, carrying her.
When he flew out into the open, she floated out of his arms and flew beside him. The Doctor pulled out his sonic screwdriver and scanned the surface of the planet.
Idris suddenly groaned and grabbed onto the Doctor.
He grabbed her and lowered them to the top of a mound. "What happened? Are you all right?"
She leaned on him, breathing hard. "Flight takes up too much energy."
As she caught her breath, the Doctor looked out on a spaceship junkyard. "A valley of half-eaten TARDISes," he said, "Are you thinking what I'm thinking?"
"I'm thinking that all of my sisters are dead. That they were devoured, and that we are looking at their corpses."
"Ah. Sorry. No, I wasn't thinking that."
"No. You were thinking you could build a working TARDIS out of broken remnants of a hundred different models. And you don't care that it's impossible."
"It's not impossible as long as we are alive. Rory and Amy need me. So yeah." The Doctor picked her up again. "We're gonna build a TARDIS." He hopped off the hill and soared down into the valley.