What is the importance of the Vatican in Cradle and All by James Patterson?

The Vatican is the headquarters for the Roman Catholic Church. It is located in Rome, Italy. Pope Pius XIII resides at the Vatican. While at the Vatican, the Pope entrusts Father Rosetti with the secret prophecy. After the Pope's death, it is Father Rosetti's responsibility to unravel the mysteries. This is not an easy task because the devil is a master of deception. Vatican City is also the location of Kathleen's birth. Father Rosetti reached the conclusion that Colleen was carrying Satan's child. He mistakenly assumed that Kathleen would bear the Savior and would require the church's protection.