Baldwin anxiously. "Read that," replied the other huskily. With this he extended the message, which was signed by the president of the Cuban Junta or War Committee, whose headquarters were in New York City. "General Moranza captured by treachery and shot by order of Weyler. His daughter seized, imprisoned, and held for transportation to a penal colony. May God help you in this hour of your affliction!" "For my father's death I grieve not," cried the young Cuban. "He died for the cause he loved, and may be avenged. But for my sister, my own little Catina, in prison, at the mercy of those brutes, and consigned to the living death of a convict! How may I bear it? What can I do? Tell me, my friend, for I am going mad." "No," cried Carl Baldwin, "you shall not go mad, nor even yield to despair, for we will yet save her. The Professor shall go with us, and we will take the Mermaid. Even now he is inclined to consider some such undertaking. And when he reads this message he will be as ready to set forth as you or I. Oh yes, my dear fellow, we can rescue her and we will. Instead of going to a penal colony, she shall come to this country, and be as free as you are at this moment." As he spoke the young American seized his friend's hand, and the latter looking into the brave blue eyes, now blazing with excitement, believed that Catina would be saved. CHAPTER II The submarine boat Mermaid was a cigar-shaped shell of aluminium bronze, extremely light and strong, about forty feet in length and eight in greatest diameter. On its upper side was a small railed platform or deck, from the centre of which rose a low turret provided with four bull's-eyes, from which an observer might glance out ahead, astern, or on either side. Another bull's-eye was fitted into the hinged and water-tight cap that closed the turret when the boat was submerged. The interior of the boat was divided into three compartments. Of these, the one farthest forward was fitted with an air-lock, through which a person wearing a diver's suit might leave the vessel while she was under water and return to her at will. This hold was also pierced for a bull's-eye through which could be made to shine an electric search light of intense power. The central compartment was the living and operating room. It also contained a dynamo,