"Repeat after me."

"Go on," replied Wilton, deeply interested in the proceeding, even while he was amused at its formality.

"I am a link of the chain."

"I am a link of the chain," repeated Wilton.

"I will obey my superior officers."

"I will obey my superior officers."

"And I will reveal none of its secrets."

"And I will reveal none of its secrets."

"This I promise——"

"This I promise——"