Twins: Once they were secure, they handed Harry a piece of parchment.
Harry: "What's this rubbish?"
Twins and Adriana: They shared a look.
George: "What's this rubbish, he says. That there is the secret to our success."
Fred: "It's a wrench, giving it to you, but, e decided, your need's greater than ours. George, if you will."
George: "I solemnly swear I am up to no good." The Marauder's Map came to life.
Adriana: "Moony, Wormtail, Padfoot and Prongs," Adriana sighed wistfully.
Fred: "We owe them so much."
George: "Right, don't forget to wipe it after you use it-"
Fred: "-Otherwise anyone can read it."
Adriana: "Mischief Managed," she demonstrated. Then she reopened it, pointing to a passage. "We'll use that one."