Three Things and a Dragon

Jaxon grew up in the Middle Ages, so waking up in 19th century London was a bit of a shock, and his day just got weirder from there. After meeting a potato and a lizard he's pretty keen to fly around the universe in a blue box, and the Doctor's got a whole new mystery to figure out, because Jaxon can do things no normal human should be able to... (Set before the Name of the Doctor)