He seemed to be in a room of considerable extent -- of medium height, but with a large proportionate area. On every side -- and he could apparently see all four sides at once -- were high, narrowish slits which seemed to serve as combined doors and windows. There were singular low tables or pedestals, but no furniture of normal nature and proportions. Through the slits streamed floods of sapphire light, and beyond them could be mistily seen the sides and roofs of fantastic buildings like clustered cubes. On the walls - in the vertical panels between the slits - were strange markings of an oddly disquieting character. It was some time before Campbell understood why they disturbed him so -- then he saw that they were, in repeated instances, precisely like some of the hieroglyphs on the crystal cube's disc.