CONTENTS
I. [The Army Flyer.] 3 II. [“That Devil Ramirez.”] 11 III. [Don Ferdinand Disappears.] 24 IV. [Word from Don Ferdinand.] 33 V. [Off to Laredo.] 42 VI. [Hit from the Rear.] 52 VII. [Don Ferdinand Again.] 61 VIII. [“Important Developments.”] 70 IX. [The Bull Fight.] 80 X. [Ramirez!] 91 XI. [Commandeered.] 102 XII. [A House of Mystery.] 111 XIII. [Captain Cornell Investigates.] 121 XIV. [A Novel S. O. S.] 130 XV. [Bob Has an Idea.] 139 XVI. [Setting the Trap.] 148 XVII. [Through the Tunnel.] 158 XVIII. [The Enemy Strike.] 166 XIX. [Captain Cornell Strikes a Clew.] 173 XX. [Don Ferdinand Explains.] 182 XXI. [On Ramirez’s Trail.] 193 XXII. [To the Rescue.] 202 XXIII. [Ramon Talks.] 213 XXIV. [Jack Surrenders to the “Enemy.”] 223 XXV. [Conclusion.] 231