How has Fix's attitude towards Fogg changed in chapters 20-27 of Around the World in 80 Days?
One of the demonstrable differences in Fix during these chapters is the way in which he moves from being a force that tries to oppose Fogg from a hidden vantage point to a character that befriends Fogg in order to stay close to him and travel with him. If we look at Chapter 20, for example, Fix speaks to Fogg, but only in a guise as another traveller and to give him false information about the steamer he was due to travel on. In Chapter 25, however, when they meet again, Fix deliberately uses his fake identity as a fellow traveller to stay with Fogg and pass the time together so he will be able to keep a closer eye on him:
He had not proceeded two hundred steps, however, when, "by the greatest chance in the world," he met Fix. The detective seemed wholly taken by surprise. What! Had Mr. Fogg and himself crossed the Pacific together, and not met on the steamer! At least Fix felt honoured to behold once more the gentleman to whom he owed so much, and, as his business recalled him to Europe, he should be delighted to continue the journey in such pleasant company.
The attitude of Fix therefore changes in as much as he seems even more obsessed and fixated with catching Fogg and preventing him from being successful in his quest, shifting his strategy from acting as an anonymous individual to assuming a disguise as a fellow traveller and openly associating himself with Fogg.