The antimatter is unstable. If it cannot be retrieved within 24 hours, it will annihilate the Vatican, vaporizing the heart of Catholicism. But there is a twist: The killer has branded Vetra’s eye with a forgotten symbol—the , an ambigram of the ancient brotherhood.
To make matters worse, the four preferred candidates for pope have been kidnapped. One will be brutally murdered every hour. Langdon has until midnight to follow a 400-year-old trail of symbols, art, and hidden altars to stop the carnage. Angels Demons
: Traditionally viewed as messengers of divine love and guidance, angels are often associated with protection, freedom, and an "ethereal glow". In Judeo-Christian tradition, they were created by God to serve as a heavenly host. The antimatter is unstable