The opening sentence line of an informative essay should include further information and details, especially from authorized sources. The reason is the writer must convince readers to continue reading and provide evidence to support his or her point of view. Therefore, the audience will consider the text as a valuable reference and will be more likely to be persuaded by the author's perspective.
Huck decides not to tell anybody of Jim's escape because if Jim stayed back, he would have been sold. Huck and Jim are both alienated from the society in a number of ways. Their fates are linked right from the first part of the novel. Freed from the hypocrisy of the society they create a heaven of their own.