"You know it?"

"Of course; but I ought not to reveal it."

"Then Hieyas won't get the message."

"That's so! You have fully made up your mind to keep us?"

"Entirely!" said Nagato; "and to do you no harm if you speak the truth; to kill you if you deceive us."

"Well, then, the password is: Mikawa."

"The name of the province over which Hieyas is ruler," said Nagato.

"Exactly! Moreover you must show the sentinels three chrysanthemum leaves engraved on an iron plate."

The speaker drew a tiny iron plate from his girdle, and gave it to the Prince.

"Is that all?" asked Nagato; "have you told the truth?"