How does the author use foreshadowing in Master and Commander?

Chapter Two has a slightly foreboding tone, particularly at the end, as some of the sailors complain about Jack's performance, one calling him 'the fleet's own brazen smiling serpent," a dangerous comment, foreshadowing crew unrest, an ever present danger in the Queen's Navy, which is at the height of its power and despotic and cruel with those who oppose it, even slightly, from within.