what is the rising action of a book
The rising action in a book is the things that happen to move the plot along toward its crescendo, or climax. These are all the actions that escalate the suspense or conflict as it heads toward its highest point, and then resolution.
In a book plot, the rising action is the group of events that concludes with the story's climax. Additional information is available online at http://changingminds.org/disciplines/storytelling/plots/five_stage/rising_action.htm.