"make a claim" about something in the book and support it with a bajillion sources
I'll tell you a great trick. It is not really a trick; it is the right way to do this, and teachers do not always explain it well...
Your claim is meaningless until you are knowledgeable. You aren't knowledgeable until after you write about the articles. The trick is to read one article and write about it.
Then another. Then another. One at a time, it is easy.
When you have written a paragraph about each article's main idea, you will have a bunch of big ideas about the series.
So start by searching your school library database for journal articles. Use the name of the series and search for journal articles, and you will find great reviews and analysis. Are you able to search for journal articles on your school library database?
So, that is the trick. Write about the articles first. Then, make a CLAIM that not everyone would agree with.
:-)