Theo walked over to them as Luna returned with a stopper of dittany from Theo’s Things. The desk of assorted specimens and potions had become quite useful to them all; Luna had set up a small cauldron on the table beside it for brewing potions and they had a small stockpile of items they had each placed there. The dittany had been put there by Draco after that first Hogsmead trip when he returned with the dark curse on his stomach. It was the largest bottle Hermione had ever seen, sitting proudly in the centre of assorted curiosities.