What is the climax for the kill order?

not sure what this question asking....but the climax of the scene where Ewell attempts to kill Jem and Scout would be when Boo Radley steps in and kills Ewell. Jem and scout are walking back from their school from a production, and Scout is in a ham costume. She can't see very well out of the costume, and the book is in her point of view. Therefore, the part where boo steps in is kind of mysterious since Scout can't really see. In fact, I think she thinks it might have been Jem!