"I have led him to believe that I have been giving you diluted Drink of Despair each day, leading to an increased level of depression. I have also "used’ a Befuddlement Draught to good effect and Baneberry Potion, which almost killed you. You will need to add a level of despair to your outer walls in case he probes you, and you should be aware of the methods I have been using on you." Severus moved to the Floo and looked back. 