Fractal book summaries: I'd like a tool that allows me to put in a PDF, .epub, or .mobi of a book, and have it output a chapter by chapter summary of varying de

Fractal book summaries: I'd like a tool that allows me to put in a PDF, .epub, or .mobi of a book, and have it output a chapter by chapter summary of varying degrees of summarization. So that then I can read the book in a fractal way. I can start with a one paragraph summary of each chapter, and I can click on anything I want to see more detail of, and it'll be instant. (So, it does all the summarization one off before I start reading)