 The entire second half of the novel revolves around the travelings of Huntly as he tries to return home; this occurs because Huntly wakes up in the bottom of a cave which he entered into by sleep-walking.Waldegrave's papers also mysteriously disappear, but later the reader learns that they were misplaced by Huntly during the night.Because Huntly was sleepwalking while he did this, he has no recollection of the events and the missing papers are therefore a great concern to him.