A slight change of angle could turn the student of today into the child of yesterday; could turn Randolph Carter into that wizard, Edmund Carter who fled from Salem to the hills behind Arkham in 1692, or that Pickman Carter who in the year 2169 would use strange means in repelling the Mongol hordes from Australia; could turn a human Carter into one of those earlier entities which had dwelt in primal Hyperborea and worshipped black, plastic Tsathoggua after flying down from Kythamil, the double planet that once revolved around Arcturus; could turn a terrestrial Carter to a remotely ancestral and doubtfully shaped dweller on Kythamil itself, or a still remoter creature of trans-galactic Stronti; or a four-dimensioned gaseous consciousness in an older space-time continuum, or a vegetable brain of the future on a dark, radio-active comet of inconceivable orbit—and so on, in endless cosmic cycle.