A Song of Ice and Fire series (books 1-5) by George R.R. Martin 4,824 pages, 5 books (Incomplete)
A single death sets this plot into motion. The hand of the king has died, and King Robert journeys north to recruit his friend Ned Stark to serve as his new hand. A Game of Thrones is a who-done-it story of intrigue and a truly epic fantasy with detailed characters and world building. Don’t worry if a hundred pages in, you’re still confused. It’ll all be worth it when you can argue online with strangers about what actually happened.
Individual book reviews and details for the series are here.