The Traveller:
Trav looks a little nervous, as she smiles, shyly. "May I hold him, please?"
Marianne looks a little apprehensive for a moment, but then she smiles, and carefully passes baby Phillipe over to Trav's arms.
As Trav holds the little form, she can feel a hint of the history and the future stretching out around him: the inheritance of eons passed on to this one tiny life and bound up in such potential -- potential for good or, she has to admit, for evil. She has a few more pieces of the puzzle, but not so much about the
why. What was Paltree thinking? Why did he pick Earth's children to carry that legacy ahead? Why not invest in the Draconians, the Silurians, perhaps the Martians?
On the other hand, there was the Doctor. And that, at least, was so like him: handing a child with such great importance off to two essentially random humans -- and all because, on a wet and gloomy night, they had shown themselves to be
kind.
Perhaps that is all the answer that is needed.