He did not sleep much that night, and Wren lay awake too, in her little cabin up inside the Jenny’s envelope, listening to him pad along the passageway from the stern cabin and clatter as quietly as he could in the galley, making himself one of those three-in-the-morning cups of tea.

At first she was worried about him. She hadn’t quite believed his version of what the heart doctor had said, and she felt quite certain that he should not be staying awake all night and fretting about mystery aviatrices. But gradually she started to wonder if his encounter with the woman might not have been a good thing after all. Talking about her at supper, he had seemed more alive than Wren had seen him for months; the listlessness that had settled over him when Mum left had vanished, and he had been his old self again, full of questions and theories. Wren couldn’t tell if it was the mystery that appealed to him, or the thought of a connection with his lost home city, or if he simply had the hots for Clytie Potts, but whichever it was, might it not do him good to have something other than Mum to think about?

At breakfast next morning she said, “We should investigate. Find out more about this self-styled Cruwys Morchard.”

“How?” asked her father. “The Archaeopteryx will be a hundred miles away by now.”

“You said she bought something at the auction rooms,” said Wren. “We could start there.”

Mr. Pondicherry who was a large, shiny sort of gentleman, seemed to grow even larger and shinier when he looked up from his account books to see Tom Natsworthy and daughter entering his little den. The Jenny Haniver had sold several valuable pieces through Pondicherry’s Old Tech Auction Rooms that season. “Mr. Natsworthy!” He chuckled. “Miss Natsworthy! How good to see you!” He stood up to greet them, and pushed back a great deal of silver-embroidered sleeve to reveal a plump brown hand, which Tom shook. “You are both well, I hope? The Gods of the Sky are kind to you? What do you have for me today?”