The first chapter is the most important chapter in the book because it is the first sample of your writing your readers will see. It must have the power to draw them in and interest them in the rest of the book. The first chapter also determines the voice, tone, and atmosphere of the story.
Start with Conflict or a Point of Interest
While the first chapter doesn’t have to start with soap-opera drama, it must have enough action to interest the reader. Many writers choose to begin their story at a point of conflict such as at a place where the hero is in immediate danger. For example, the logical place to begin a mystery would be with the discovery of the body, not the detective commuting to work or reading the morning newspaper.
Providing Background Information
Many writers make the mistake of including far too much background information in the first chapter. This is because they are anxious to set the groundwork for the rest of novel. They want readers to know everything about their character from the start.
For example, it might be necessary for the reader to know where your hero lives, but not, at this point, where he went to school, how many kids he has, whether or not he gets along with his mother. These points can be introduced if and when they become pertinent to the story. Though additional information is necessary, it should not all be crowded into the first chapter. If there is too much explanation, most of it can be discarded, and what is essential should be threaded into to a later part of the book.
What Goes in the Middle If your book is a mystery, have the detective discover an unusual lead or clue he plans to follow up on. If your story is a romance, cut the first chapter off at the point where the boy asks the girl for a date, not after the reader already knows her answer. If you are writing a thriller, stop the first chapter with the hero hanging on the ledge of the building, not after he has jumped to safety
Now that you have gotten their interest, you must develop the first chapter by deepening the conflict. If you have started with a point of action, now is the time to bring into focus the details of the event, and the character’s reactions to the event.
End With a Question or Cliffhanger
Just as the first chapter begins with a bang, it should not end with a whimper. The final lines should pose a question that draws readers into the next chapter