After a few hours Hermione and Draco had managed to produce a cauldron full of fluid that was colourless, odourless and looked exactly like water. Perfect for what appeared to be Veritaserum. Professor Slughurn congratulated them and commented it was the best first try of any students he had seen in all his years of teaching. He recommended it works best after maturing for at least a full lunar phase so the complete marks would be awarded when this time would come and it could be tested at its full potency. 