"They look in the pink of condition," agreed Doctor McCrea.

"If you don't feel wholly up to the mark," urged Mr. Mayhew, "say so. For, if you put out to-day, it is my intention to take the cadets through drills below the surface."

Jack's eyes sparkled at the thought. This meant that he and Hal were to be taken back fully into the confidence of the Navy!

"We're ready, sir—ready at the word of command."

"Very good, then," replied the gunboat's commander. "You will receive sixteen of our young men on board within an hour. Ensign Trahern will come with them."

Jack started, flushing.

"Oh, you will be in command of your boat, Mr. Benson," continued Mr. Mayhew, noting the start and interpreting it correctly. "Mr. Trahem may make some suggestions, if he thinks them necessary, but you will command, sir, and you will instruct the midshipmen."

"Thank you, sir."

"That is all, Mr. Benson."

Jack and Hal saluted, turned and left the cabin.