noon
`` So far so good , '' murmured Tom . `` Now we 'll ` shoot the sun , ' and after we submerge we 'll begin our search in earnest . I think we are on the right track now . '' The observation was made at noon , and then , as nearly as possible , the submarine was moved to a position approximately four miles north of the place where the Pandora was supposed to have foundered . `` Down we go ! '' exclaimed Tom , and down they went . The depth gauge showed more than a thousand feet below the surface when the M. N. 1 came to rest .