"Well, gentlemen, you hear what the man says," continued Captain Brookes, turning to his officers. "What do you say?"

"We are willing to leave the matter entirely in your hands, sir," replied Lieutenant Sinclair, confidently.

"That's what I expected," continued Captain Brookes. "And now, señor, go forward and take the helm, for be there one or fifty mines, I mean to enter dry dock before sunset. Mr. Palmer, clear away the submarine."

[Illustration: CHAPTER XII]

THROUGH THE MINE FIELD

AT the mention of the word "submarine" Gerald felt the blood surge to his temples. It was not the surprise of hearing that the Olive Branch possessed one of these master craft that affected him; he was getting used to surprises. It was the glamour of the enterprise that thrilled him.

For months past Gerald's ambition was to serve in the submarine flotilla. His name had been on the "roster" as a volunteer for the hazardous, yet attractive, service, but up to the time of his leaving the Calder his hope in that direction had not been gratified.

"May I accompany Mr. Palmer, sir?" he asked, bringing his hand to his forehead with professional smartness.