13 - Caleb Williams or Things As They Are by William Godwin

Caleb Williams or Things As They Are unfolds the dramatic tale of Ferdinando Falkland, a noble British squire, and Caleb Williams, a humble yet ambitious young man who serves as Falklands personal secretary. When Caleb stumbles upon a dark secret from Falklands history, the dynamics of their relationship take a sinister turn. Despite Calebs vow of silence, the knowledge he possesses threatens Falklands deeply ingrained notions of social hierarchy and innate virtue. Falkland, in a desperate bid to retain his power, resorts to extreme measures, using manipulation, imprisonment, and pursuit to ensure Calebs silence. Branded as a criminal, Caleb embarks on a thrilling life on the run, filled with a constant fear of impending doom. This captivating novel by Godwin, often considered an early thriller or mystery, presents a riveting series of adventures filled with suspense and intrigue. (Summary adapted from Wikipedia)