How do Huck, the king, and the duke get away from the crowd when Peter Wilk's body is uncovered?

The entire town travels to the gravesite. When they finally unearth and open the casket, they discover the gold Huck has hidden there. Immediately, the men holding the King and Duke let go to get a look at the money. At this opportunity, Huck, the King, and the Duke run to the river as fast as they can. Huck gets to the raft and takes off down the river, hoping to escape the two men. When the Duke and King catch up to him in a little skiff they board the raft.