Front matter
Reading edition
By
Graham M. Dean
THE GOLDSMITH PUBLISHING COMPANY
Copyright, 1934
The Goldsmith Publishing Company
PRINTED IN THE U.S.A.
CONTENTS
1. The Man of Mystery
2. A Secret Service Case
3. The High Flyers
4. The Mad Pursuit
5. Death Rides the Air
6. Another Visitor
7. On the Trail of “Mr. Seven”
8. A Sudden Attack
9. In the Valley
10. “Mr. Seven’s” Secret
11. Rescue from the Air
12. Against Time
13. Eastward Bound
14. The S-18
15. An Unknown Intruder
16. The First Test
17. On the Bottom
18. The Missing Cook
19. The Warning Note
20. Isle of the Singing Trees
21. The Battle with the Iron Mate
22. Trapped
23. Desperate Hours