The Lost Symbol is Dan Brown's sequel to his internationally best-selling thriller, The Da Vinci Code. The novel, based on five years of research, is "set deep within the oldest fraternity in history - the enigmatic brotherhood of the Masons" and will explore the hidden history of America's capital. The novel is structured around twelve hours in the life of Robert Langdon, the Harvard professor and religious symbolist in The Da Vinci Code.

Also by Dan Brown:
The Da Vinci Code
Angels & Demons
Deception Point
Digital Fortress