With the exception of those sent to prison none of the spies have as yet been heard from.
For a considerable time the "Benson" remained at, or near, Spruce Beach.
Hennessy's articles attracted great attention to the craft. The Navy
people were charmed by the new capabilities shown by this latest of the
Pollard submarine boats.
Later the submarine boys were destined to turn their attention to new and thrilling work with submarine craft And now came most stirring times that put their grit, intelligence and resource to the hardest kind of tests.
These newest happenings will be related in full in the next volume of this series, which will appear under the title: "The Submarine Boys' Lightning Cruise; Or, The Young Kings of the Deep." The reader of this new volume will find a rare treat in store for him!