The Secretary of the Navy has some dire news to share with Frank Reade Junior: America stands on the brink of ruin as a packet of inconceivably sensitive government documents has been lost at sea. The nation cannot rest easy until the critical papers are retrieved, and there is only one man that the Navy trusts for the job: America's —and the world's— greatest inventor, Frank Reade Junior.But treachery! A spy has obtained the underwater location of the lost documents, and a crew of murderous cutthroats is hot on Frank Reade's heels. Can the nation's greatest genius and his incredible new submarine boat succeed in restoring peace to the nation? Or will he perish at the hands of the perfidious fiends?In this classic 1889 science fiction tale, Cuban-American author Luis Senarens brings us another thrilling adventure of the 19th Century's most daring kid inventor, boy genius Frank Reade Junior!