The King wanted Huck and Jim to go down on one knee and what?

From the text:

Well, he cried and took on so that me and Jim didn’t know hardly what to do, we was so sorry—and so glad and proud we’d got him with us, too. So we set in, like we done before with the duke, and tried to comfort him. But he said it warn’t no use, nothing but to be dead and done with it all could do him any good; though he said it
often made him feel easier and better for a while if people treated him according to his rights, and got down on one knee to speak to him, and always called him “Your Majesty,” and waited on him first at meals, and didn’t set down in his presence till he asked them.