I Am Pilgrim: A Thriller by Terry Hayes. $11. Admittedly, I haven't read this book yet. However, I Am Pilgrim has gotten quite a bit of critical and popular acclaim, with 3,000+ Amazon reviews awarding it 4.5 stars. Pilgrim is a retired CIA operative who unwittingly gets drawn into the biggest case of his life. A murder in New York. A beheading in Saudi Arabia. A biotech expert found with his eyes gouged out in Damascus. Human remains smoldering in Afghanistan. All are connected and part of a "flawless plot to commit an appalling crime against humanity."