Part Three:

It was a quiet day on the TARDIS. The Universe was in balance, everyone was happy and healthy.

The Doctor was creating more of his gadgets and toys and Rose was soaking in a bath. And then she screeched. It was a screech of surprise and a little fear. Like somehow a cat had gotten into her bath with her and was now regretting it. But that was silly, there were no cats, wild, domesticated, or humanoid, on the TARDIS…

The Doctor came running, Sonic Screwdriver ready. He found Rose, nude, holding a soaking toddler. There was soapy water everywhere.

"He popped inta my tub!" she said unhappily. He almost laughed at her pouty face, almost. He wasn't stupid enough to. He really needed to save his remaining regenerations for emergencies, so, he did the next best thing,

"Hello Harry," The Doctor grinned, kneeling, "You're far out of your timeframe. Our Harry is all grown up, traveling the universe in his very own TARDIS. With his very own companion."

Harry stared. Well, more like glared. Green eyes met green eyes.

"Ah, yes," The Doctor spoke, "I regenerated. Bowties are cool and tweed is very in right now." He grabbed Harry, standing up, "Now, I'm sure we can find you a dry nappy and trousers somewhere on this wonderful ship of ours…Let's leave Mummy to get dressed."

"I haven't been his Mummy for three centuries…" Rose grumbled as they left, "and then suddenly he popped in, two years old again…He gave me enough white hairs the first time 'round…" she was already pulling on fresh clothes.

"And you don't look a year over two hundred and twenty!" The Doctor sang back happily.

"Oh shut it Doctor!"

"Don't mind her," The Doctor spoke in a whisper, "Bad week, more Daleks. Every time we get rid of them they somehow come back. However, it was only three so we managed to stop them after a few days. And then the Master accidentally walked in on us…She drank her elixir this morning and you were a very troublesome child…Ah ha!"

They had entered a nursery. The Doctor set him onto a changing table, pulling off his dirty nappy and wet trousers. And then he left the boy, beginning to rummage around in the dressers, still talking, "Now, I know we have some clothes and nappies around here, grandchildren and so on. Both genders too. I'm sure we can find something that fits you…I—Here they are!"

He spun about, nappy in one hand, trousers in the other, and grin in place. Within minutes Harry was dressed.

"One last bit here," The Doctor pulled a bracelet from his pocket, fastening it around Harry's wrist, "Now you'll only bounce between TARDISes…"

"Ours or any?" Rose's voice asked; she was leaning against the door-jam, arms crossed and eyebrow raised questioningly.

"Only ours…so Nine, Ten, and this one here…"

Harry began to glow blue, fading out and into another time.