Floch does indeed die. His fate is a significant plot point in the manga's storyline. The circumstances surrounding his death add to the overall tension and drama of the series.
Maybe there's some sort of misunderstanding or a powerful enemy who has framed Naruto. Minato, following the rules of the village, arrests Naruto. As Naruto is in prison, his friends try to find evidence to prove his innocence, and Minato gradually realizes he's made a mistake and starts to help them from the inside.
The book is useful because it contains many stories that teach valuable lessons. For instance, stories about survival skills can give scouts practical knowledge. Also, stories about friendship and helping others can shape their character. Moreover, the cultural and historical stories in the book can expand their knowledge about different places and times, which is important for well - rounded scouts.