Disclaimer: The Doctor and company belong to the BBC. I'm just borrowing, without permission, and I'm not making a dime doing this. It's just for fun.

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Balancing Act
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He's juggling again. Keeping -- how many? -- tennis balls in perfectly balanced motion. An action here, a reaction there, keeping it going. Like he does with the universe, Ace thinks. An action here, and somewhere, eons and light years away, something equal and opposite happens. And he has to keep it all balanced. No wonder he looks so tired, so desperate all the time.

But here, now, he's relaxed. Flipping tennis balls through the air.

He fumbles one, and for a moment he's a lost child. Panicked. This can't be happening!

She retrieves it, tosses it back. The balancing act continues.