Jack and Annie have changed their clothes and shoes so they look like exactly same as ancient Chinese.
The tree house landed in the middle of the field where cows gazed and cowherd stood watching them.
Annie thought it was so peaceful but Jack didn't agree with that.
Jack opened the China book and read the history of the its first empeor who was called 'Dragon King'
Annie thought the book they need must be in Dragon King's library and the it place in walled city beyond the field.
They started down to the ground and ran through the field toward the walled city.
The man near the cows waved at them and ranning toward them for asking a favor.
He asked to give a message 'meet me at twilight' to silk weaver who worked at the farmhouse.
Annie accepted it and ask where Imperial Library is. But a look of horror crossed his face and said "Whatever you do, beware.”
Jack and Annie stared to worried about this time advanture.