My keepers grew compassionate; I know not what had made them so, They were inured to sights of woe, But so it was:—my broken chain With links unfastened did remain, And it was liberty to stride Along my cell from side to side, And up and down, and then athwart, And tread it over every part; And round the pillars one by one,310 310 Returning where my walk begun, Avoiding only, as I trod, My brothers' graves without a sod; For if I thought with heedless tread My step profaned their lowly bed, My breath came gaspingly and thick, And my crushed heart felt blind and sick. XII. I made a footing in the wall,