That's odd, thought Knife, that's something you don't see every day. A man and a dragon riding side-by-side?
She was so busy staring at the little party coming up the road that she tripped on a missing cobblestone and would have tumbled over except, being dead, she didn't. The thing about being dead, she had discovered, is that the universe ignores you and treats you as if you weren't there; it's as if you've been written out of all the equations. Sometimes this could be an advantage but mostly it was very inconvenient.
"That's odd," remarked Flora. "That's something you don't see every day. Up the road, there, by those trees, there's a dead human walking towards us."
Of course, they met. You knew they were going to, didn't you? Knife didn't want her knife back, though, because she'd given up being an Assassin. When you work for Death of Classes, albeit briefly, you don't get to keep your class. So she wasn't anything, really, which is why she was basically useless at everything.
Cholmondley brought her up to date with news of her two friends Ronni and Keyes. "They sent me to find you. They were worried about you, disappearing like that." Then he embroidered the story a little, to try to cheer Knife up. "They stole practically everything from everybody in the tavern. Then they stole the tavern. Well, partly. Why not go back and see them? We'll get you there."
"I suppose I might as well," agreed Knife wearily, scratching Barnaby's ears. He nuzzled her and they started to bond. They had a lot in common. Barnaby was grudgingly happy to let her to ride him, because being dead she weighed nothing and she was grudgingly happy to ride him because, having four feet, he could stumble over twice as many cobblestones and they could both be twice as miserable.
And so they all set off back to the Druid's Head. On the way, Flora did some little cantrips and actually made Knife laugh, despite herself. "Have you thought of retraining as a Wizard?" she asked, "I could teach you the basics."