The two boys ran until they could run no longer. "Huck, what do you think will come of this?" "If Doctor Robinson dies, I reckon hanging will come of it." They agreed to keep quiet, because Injun Joe would drown them like cats if they told. Tom wrote an oath in blood on a shingle, and they buried it under the wall. In the morning the whole village heard of the murder. The knife was found beside the body, and everybody said that Muff Potter had done it. Potter was taken to the little jail, and the boys said nothing. Tom's conscience gave him no peace for a week. He went to the jail window at night and passed tobacco and matches through the bars to the poor man, who thanked him and made him feel like a traitor.