I just got an idea for a novel... you have a main character who is killed off in the first few chapters, and then the story switches off to the real main character. For example: MC1 is the "main character" of a novel for 10 of 30 chapters... MC2 has a close relationship with MC1 and acts as a supporting character during these chapters. In chapter 10, MC1 is killed off, and the book switches and turns MC2 into the main main character, as he would be the main character for the next 20 chapters. Is this a good idea???