A Slow Poison is a side quest in Dragon Age: The Veilguard that gives more insight into how The Butcher sees the people of Treviso. It also gives a hint or two on the mystery surrounding the Antaam invasion. The Antivan Crows, known for their espionage and intelligence gathering, suspect a traitor within the city walls, aiding the Antaam in their swift takeover. The player character, alongside their companions, is tasked by the Crows to uncover the truth.