

In Korea, everyone goes to The Oh Mansion. They decode another message in the shapes, and some English letters. Ian gives Amy a small coin of importance to the search, after their hands brushed up against each other in the car, hoping that this token can gain Amy's trust. They are rescued by Nellie, who has struck a deal with, and is accompanied by, the Kabras. Later, they find some geometric shapes, but are chased by the Yakuza and are once again nearly killed. In this room, they find a haiku, which tells them to use geometry to find Hideyoshi's treasure. However, Alistair Oh pulls them into the room, saving them both. The group then goes to a train station according to a lead and Dan and Amy nearly get hit by a train. The Holts kidnap Amy, Dan and Alistair and threaten them into helping them find the next clue.

Together they learn about Toyotomi Hideyoshi, the greatest warrior in the history of Japan, and the son of the first Tomas, also focusing on swords stolen centuries ago by Japanese warrior Toyotomi Hideyoshi. Amy and Dan are then forced to team up with Alistair Oh and fly with him on his private plane to Tokyo, Japan. There, Ian and Natalie Kabra steal their plane tickets and board a plane with their au pair, Nellie Gomez, who is already on the plane. The Sword Thief is the third book in the first series, and starts with Dan and Amy in a Venice airport.
