This chapter examines the Swedish intelligence organization during the reign of Erik XIV. Sources from this period allow for an increasingly detailed study of the intelligence expenditure, and the study reveals approximate budgets and payment rates for agents within the Swedish intelligence organization. It also reveals the extensive system of messengers who forwarded intelligence dispatches. This chapter also scrutinizes preserved lists of intelligence agents from 1559 and 1561 and shows that they indeed contain an overview of operatives deployed throughout Northern Europe. Although the lists contain about 100 names, the study shows that they are far from complete. Although King Erik maintained a strategic interest in Western Europe, the Nordic Seven Years’ War (1563–1570) with Denmark largely consumed his strategic focus. This chapter provides an analysis of how military intelligence was organized during the war. It also examines the clandestine activities of the infamous procurator Jöran Persson. This chapter concludes that King Erik displayed a paranoia of a more destructive kind than that of his father. This generated excessive internal surveillance and prosecutions, which eventually resulted in the fall of the king.