18—Jack Harkaway’s Duel
19—Jack Harkaway and the Turks
20—Jack Harkaway in New York
21—Jack Harkaway Out West
22—Jack Harkaway Among the Indians
23—Jack Harkaway’s Cadet Days
24—Jack Harkaway in the Black Hills
25—Jack Harkaway in the Toils
26—Jack Harkaway’s Secret of Wealth
27—Jack Harkaway, Missing