CONTENTS

CHAPTER I Caught in the Storm

CHAPTER II A Rescue

CHAPTER III A Puzzling Letter

CHAPTER IV A Fruitless Search

CHAPTER V Clyde Wendell's Mission

CHAPTER VI Startling Developments

CHAPTER VII In a Hollow Log

CHAPTER VIII A Night Caller

CHAPTER IX A Significant Title

CHAPTER X An Unsatisfactory Test

CHAPTER XI The Secret Hiding Place

CHAPTER XII The Awaited Message

CHAPTER XIII The Missing Book

CHAPTER XIV The Shortcut

CHAPTER XV What The Book Revealed

Transcriber's Notes

By
Ann Wirt

The Madge Sterling Series

The Missing Formula
The Deserted Yacht
The Secret of the Sundial

THE GOLDSMITH PUBLISHING COMPANY
NEW YORK