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THE GRAND LUNAR
339
elucidate what has been a puzzle to me ever since I realised the vastness of their science, namely, how it is they themselves have never discovered 'Cavorite.' I find they know of it as a theoretical substance, but they have always regarded it as a practical impossibility, because for some reason there is no helium in the moon, and helium———"
Across the last letters of helium slashes the resumption of that obliterating trace. Note that word "secret," for on that, and that alone, I base my interpretation of the message that follows, the last message, as both Mr. Wendigee and myself now believe it to be, that he is ever likely to send us.
