The other day, when talking to a fifth grade class, a boy asked, “How do you know when to end a chapter?” A good question. A good book has a complex structure, with different structural beats. Those beats might be the turn of the plot, a great sentence (or paragraph), a shift in mood, an emotional high (or low) point, a revelation for the reader. You can think of others. One of the strongest beats is the chapter ending. It should be a pause that makes you (the reader) not want to stop. Yet, it is often the pause that allows you to stop, to muse upon what you just read, to catch your breath, to go to sleep. It must be perfectly balanced so as to allow the reader to absorb what has just happened, yet encourage continuation. My style tends toward the “cliff-hanger” chapter ending. (That word comes from the mid-20th century world of movies.) When I wrote Beyond the Western Sea, my longest book (680 pages), I structured it so that each short chapter would (hopefully) compel the reader to continue to read on. My editor and I used the metaphor of a bowl of salted peanuts. You cannot stop eating them—or in this case, reading the next chapter—until you’ve gone through the whole bowl—or book. Mindful of this I just restructured the book on which I am working.