6CHAPTER XI THE DOORS CLOSE
22CHAPTER XXVII THE CREAKING STAIRS
7CHAPTER XII A LADY DETECTIVE
23CHAPTER XXVIII TWO ANKLES AND A SCREAM
8CHAPTER XIII SECRET SERVICE
24CHAPTER XXIX JOYCE FRAMES ONE
9CHAPTER XIV “THE VOICE”
25CHAPTER XXX FROM OUT THE CLOUDS
10CHAPTER XV A HEAVY DATE
26CHAPTER XXXI THE TRAIL LEADS NORTH
11CHAPTER XVI AN ISLE OF MYSTERIES
27CHAPTER XXXII THE PLACE OF RENDEZVOUS
12CHAPTER XVII JOHNNY HEARS THE VOICE
28CHAPTER XXXIII THE SHADOW FALLS
13CHAPTER XVIII IN THE TUNNEL AT NIGHT
29CHAPTER XXXIV THE PASSING OF THE VOICE
14CHAPTER XIX A NIGHT’S GRIM BATTLE
30CHAPTER XXXV GOOD NEWS
15CHAPTER XX “WE WILL DIG HERE”
31Transcriber’s Notes
16CHAPTER XXI ONLY A VOICE
