In this first book-length treatment of conspiracy in Roman history, Victoria Pagá n examines the narrative strategies that five prominent historians used to disclose events that had been deliberately shrouded in secrecy and silence. She compares how Sallust, Livy, and Tacitus constructed their accounts of the betrayed Catilinarian, Bacchanalian, and Pisonian conspiracies. Her analysis reveals how a historical account of a secret event depends upon the transmittal of sensitive information from a private setting to the public sphere— and why women and slaves often proved to be ideal transmitters of secrets. Pagá n then turns to Josephus's and Appian's accounts of the assassinations of Caligula and Julius Caesar to explore how the two historians maintained suspense throughout their narratives, despite readers' prior knowledge of the outcomes.