fascinating speculation. But without so complete an overthrow of
the partition walls as this would imply we know enough already to
assure ourselves of such a close approximation as will surely
deeply modify all our views of science, of religion and of life.
What form these changes may take and what the evidence is upon
which they will be founded are briefly set forth in this volume.

ARTHUR CONAN DOYLE.

CROWBOROUGH,

July, 1919.



CONTENTS

CHAPTER

I THE TWO NEEDFUL READJUSTMENTS
II THE DAWNING OF THE LIGHT
III THE GREAT ARGUMENT
IV THE COMING WORLD
V IS IT THE SECOND DAWN?

APPENDICES
A. DR. GELEY'S EXPERIMENTS
B. A PARTICULAR INSTANCE
C. SPIRIT PHOTOGRAPHY
D. THE CLAIRVOYANCE OF MRS. B.