"Well, nevertheless, life exists simultaneously on many different frequency levels that are undetectable from one to the otheran analogy would be the many TV channels that are in the air simultaneously, but you can only tune in to the one frequency that your tuning device is locked into.

The process that I have described is, in all essentials, that which is used in the reproduction of pen-and-ink drawings, and any of the hundreds of workmen who are employed in that industry could make a relief-block of a finger-print, with which an undetectable forgery could be executed.

Now if our space is curved in higher space, since such curvature is at present undetectable by us, we must assume, as Hinton chose to assume, that it curves in the minute, or, as some astronomers assume, that its curve is vast.

For the time being, my entire attention was concentrated on it, making it as perfect and secure and undetectable as I could with the knowledge and ingenuity at my command.