The climax in my novel was when Sal was walking, and Sal spotted Marcus and gets frightened and runs away. Marcus saw that a truck was coming so he chases after Sal, only to alert him about the truck. After this the crazy guy on their street saw the incident, so he comes out to save Sal and blocked the truck. But unfortunately he dies while saving Sal's life.
The first falling action in my book is when Miranda finds out that the laughing man is actually the mysterious person who was sending the notes to her. She also figures out that the laughing man and Marcus are the same person.
The second falling action in my book is when Miranda was going to give the laughing man a note, so instead she delivers it to Marcus.