the eye was indeed globular , though this wasnt apparent from the concavity of its walls whose size and distance was immense , like a circular horizon of impenetrable blackness but from the lids , two vast , sky-high plates which drew apart slowly and unpredictably , making the mad sphere tremble to its foundations and admitting , for as long as they remained parted , a frantically flickering view of other firmaments : endless stretches of black space studded with brilliant stars , bright blue skies across which fat white clouds chased one another , suns of searing violet setting above worlds of luscious green .