when it had burst up into the house on neibolt street , meaning to kill them all , vaguely uneasy that it had not been able to do so already ( and surely that unease had been the first new thing ) , something had happened which was totally unexpected , utterly unthought of , and there had been pain , pain , great roaring pain all through the shape it had taken , and for one moment there had also been fear , because the only thing it had in common with the stupid old turtle and the cosmology of the macroverse outside the puny egg of this universe was just this : all living things must abide by the laws of the shape they inhabit .