"In a few hours, Scorpius's funeral will take place in Wiltshire. Malfoy doesn't want to see anyone, but I know Rose will go anyway. She wouldn't be my cousin if she didn't. We'll go too, we'll lurk somewhere and wait for her. I'm sure she'll find us; we'll find the best spot to spy on the funeral, and she'll do the same. We'll make her comfortable and convince her to come to The Leaky Cauldron with us. Dylan, you must make her believe you have a big secret to reveal to her. Show that you're nervous, intimidated, make her understand that you know something we don't. I'm sure Rose will wait for the right moment and then come to talk to you. You'll have to take her to Knockturn Alley. And this is where Dorian comes into play." Dorian's eyes lit up, quivering with curiosity. "There's a potion shop at number thirteen; it belongs to a witch. She used to know Dark Magic, but now she's just a harmless old lady. You still have to talk to her, convince her to collaborate with us. If you can't, kill her."