CONTENTS
| CHAPTER | PAGE | |||||||
| I | [The Boy in the Tree] | 1 | ||||||
| II | [The Talking Frog] | 8 | ||||||
| III | [An Unknown Prowler] | 18 | ||||||
| IV | [We Take the Frog to School] | 27 | ||||||
| V | [Bubbles of Beauty] | 41 | ||||||
| VI | [The Mysterious Soap Man] | 52 | ||||||
| VII | [What Scoop Did] | 62 | ||||||
| VIII | [In the Old Mill] | 71 | ||||||
| IX | [The Mystery Deepens] | 83 | ||||||
| X | [A Surprise] | 95 | ||||||
| XI | [The Bible’s Secret] | 103 | ||||||
| XII | [So Beautiful!] | 114 | ||||||
| XIII | [Up a Rope] | 129 | ||||||
| XIV | [Felix Gennor, Jr.] | 142 | ||||||
| XV | [The Prisoner] | 150 | ||||||
| XVI | [Chased by a Ghost] | 168 | ||||||
| XVII | [The Crazy Puzzle Room] | 173 | ||||||
| XVIII | [The Ten-Ring Puzzle] | 182 | ||||||
| XIX | [Scoop Disappears] | 192 | ||||||
| XX | [Up the River] | 197 | ||||||
| XXI | [Fishing!] | 213 | ||||||
| XXII | [We Capture the Ghost] | 222 | ||||||
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