Fifteen minutes later Darrin looked into the room, saying good
night to his chum. Then he retired to his own sleeping room; five
minutes later he was sound asleep.

No strangers to our readers are Dave Darrin and Dan Dalzell "Darry"
and "Danny Grin," as they were known to many of their friends.
As members of that famous schoolboy group known as Dick & Co.
they were first encountered in the pages of the _"Grammar School
Boys Series."_ All our readers are familiar with the careers in
sport and adventure that were achieved by those splendid Gridley
boys, Dick Prescott, Dave Darrin, Greg Holmes, Dan Dalzell, Tom
Reade and Harry Hazelton. The same boys, a little older and twice
as daring, were again found in the pages of the _"High School Boys
Series,"_ and then immediately afterward in the _"High School Boys'
Vacation Series."_

It was in the _"Dick Prescott Christmas Series"_ that we found all
six of our fine, manly young friends in the full flower of high
school boyhood. A few months after that the six were separated.
The further fortunes of Dick Prescott and Greg Holmes are then
found in the _"West Point Series,"_ while the careers of Darrin
and Dalzell are set forth in the _"Annapolis Series,"_ just as the
adventures of Reade and Hazelton are set forth in the _"Young Engineers
Series."_

At Annapolis, Darrin and Dalzell went through stirring times,
indeed, as young midshipmen. Now, we again come upon them when
they have become commissioned officers in the Navy. They are
now seen at the outset of their careers as ensigns, ordered to
duty aboard the dreadnought "_Long Island_" in the latter part