This paper explores the crisis of 596 which interrupted Augustine of Canterbury's mission to the Anglo-Saxons, necessitating his return to Rome. Bede's interpretation of this as a moment of psychological failure is discounted. Political changes in Merovingian Gaul associated with the death of Childebert are reconsidered. A new economic explanation is advanced based on the wording of Gregory the Great's letter of encouragement to Augustine and his fellow missionaries, consideration of the management of the papal estates in Gaul and the behaviour of Virgilius, metropolitan of Arles.