The Da Vinci Code follows symbologist Robert Langdon and cryptologist Sophie Neveu after a murder in the Louvre Museum in Paris causes them to become involved in a battle between the Priory of Sion and Opus Dei over the possibility of Jesus Christ and Mary Magdalene having had a child together. It was followed by two sequels, Angels & Demons (2009) and Inferno (2016). Plot Jacques Saunière, a Louvre curator, is pursued by an albino Catholic monk named Silas, who demands the location of the "keystone" to find and destroy the Holy Grail. Saunière gives him a false lead and is murdered. .