what he and Howard were so busy about

"Co'se dey has. De ole Jedge has be'n havin' a duel wid one o' dem twins." "Great Scott!" Then he added to himself: "That's what made him remake the will; he thought he might get killed, and it softened him toward me. And that's what he and Howard were so busy about. . . . Oh dear, if the twin had only killed him, I should be out of my--" "What is you mumblin' 'bout, Chambers? Whah was you? Didn't you know dey was gwine to be a duel?" "No, I didn't. The old man tried to get me to fight one with Count Luigi, but he didn't succeed, so I reckon he concluded to patch up the family honor himself." He laughed at the idea, and went rambling on with a detailed account of his talk with the judge, and how shocked and ashamed the judge was to find that he had a coward in his family. He glanced up at last, and got a shock himself. Roxana's bosom was heaving with suppressed passion, and she was glowering down upon him with measureless contempt written in her face. "En you refuse' to fight a man dat kicked you, 'stid o' jumpin' at de chance! En you ain't got no mo' feelin' den to come en tell me, dat fetched sich a po' lowdown ornery rabbit into de worl'! Pah! it make me sick! It's de nigger in you, dat's what it is. Thirty-one parts o' you is white, en on'y one part nigger, en dat po' little one part is yo' _soul_. 'Tain't wuth savin'; tain't wuth totin' out on a shovel en throwin' en de gutter. You has disgraced yo' birth. What would yo' pa think o' you? It's enough to make him turn in his grave. The last three sentences stung Tom into a fury, and he said to himself that if his father were only alive and in reach of assassination his mother would soon find that he had a very clear notion of the size of his indebtedness to that man, and was willing to pay it up in full, and would do it too, even at risk of his life; but he kept this thought to himself; that was safest in his mother's present state.