Help with my Novel Study - Da Vinci Code?

The major conflict is between Robert Langdon vs Opus Dei & the Vatican. Opus Dei & Vatican want to find the Holy Grail and destroy it as it may discredit Jesus (thee who is holier than thou, as just a common man with no GODLY gifts.) While Robert & Sophie want to find it and protect it as Sophie's grandfather's dying wish. The Protagonist is definitely Robert Langdon.