Books of fiction are usually divided into

Okay, I don't know what case you are talking about but here are the different cases:
Beginning, middle and end. The beginning basically introduces a book. Often, there is a little problem before the major problem in the middle. The little problem may lead to a big one, or there may be many problems that need many resolutions. The end must not be as exciting as the middle, of where the problems occur.

Books of fiction are divided into novel and chapter books.

As the boys sleep, military airplanes battle fiercely above the island. none of the boys sees the explosions and flashes in the clouds because the twins sam and eric, who were supposed to watch the signal fire, have fallen asleep. during the battle, a parachutist drifts down from the sky onto the island, dead.