A/N: This the first part in a six part series. (Ah, look at that a series! Love a good series!) They will all be crossovers with Doctor Who, but a different fandom each time. Anway, I hope you enjoy! Allons-y! Disclaimer: I do not own Mary Poppins or Doctor Who, very not molto bene, but what's a whovian to do?

Here Be Time Lords:

Part One

The Nanny

Mary Poppins straightened her hat and opened her umbrella. She had taught another child the rights and wrongs of the world. She nodded and she floated off as the poor girl cried mournfully and waved goodbye.

After settling on her usual cloud, Mary calmly set her bag down. She took a moment to admire the view before stepping into the familiar carpet bag.

The cool metal floor greeted her and Mary sighed. She had to leave. There was always more children that needed her help. Now where too next? The weather would turn in 1919 or maybe the winter previously...

She had to be careful where she turned up or else she meet herself and that would be a paradox. Mary sighed and placed her hat on the hat stand and strode to the cheerful looking console.

Mary hummed 'Supercalifradlisticexpealidocious' softy and her ship hummed back. She rather liked to call it 'her ship.' After all 'Time And Relative Dimensions In Space' was a bit of a mouthful to say. Of course, after that 'Doctor' and his granddaughter had petitioned to change the name to TARDIS, it was a bit easier.

Mary sat primly down on the jump seat and smoothed her hair back. Juniper had been an absolute jewel. Wonderful manners, a pleasing disposition, and always looking on the bright side of things.

Even being an adopted child in an impersonal household had not wavered the girl's faith. She had fixed the poor family, oh yes, and Juniper did not need her anymore. She had to leave, after all, what was a Time Lady to do?

Was she to live there till Juniper grew up? Preposterous! Oh, how she was envious of that 'Doctor.' He had married and had children and his children had children. She was just an old maid.

In fact that was what had driven her to earth. The desire to have children and help the poor dears. Mary clutched her sonic umbrella tighter.

A silent tear slipped down the nanny's face and she wiped it away quickly. Practically perfect people never permitted sentiment to muddle their thinking. She had work to do.