Dwight Garner at the New York Times:
Everett mostly sticks to the broad outlines of Twain’s novel. He is riding the same currents; the book flows inexorably, like a river, yet its short chapters keep the movement swift. James is on the run, of course, because he has learned that Miss Watson plans to sell him to a man in New Orleans. He will be separated from his wife and children. Huck is on the run because he has faked his own death after being beaten by his father. They find each other on an island in the Mississippi, and their flight begins. The reader slowly discovers that their bonds run deeper than friendship.
There are familiar large scenes, like Huck and James’s separation in a fog, and their encounter with the deadly con artists, the Duke and the King. But smaller moments are reproduced as well, such as James’s suffering after a rattlesnake bite and Huck’s need to dress like a girl to disguise his identity.
more here.