Discover Journey allows you to search the text in A Journey into the Unknown for a word or phrase.
The search lists all results for the word or phrase in Journey. Each result shows the context in which the word or phrase appears and gives a link to the paragraph. From the paragraph you can also view previous and next paragraphs in the same chapter.
Some tips on how to search:
The Search Guidelines give you more detail on how to make the most of Discover Journey.