And they spent the rest of the day in total silence. Edmund practised wielding his new sword, while Ron was practising spells. Hermione, as for her, plunged herself in the study of Beedle the Bard's texts, reading other tales and analysing any single rune to see if she couldn't find any clues in them. When the night fell, they disapparated again, looking for a desert and protected place.
"Ready?" Hermione asked.
"I'll keep an eye on you." Ron replied.
Hermione thought for a second, and then reached for her bag, and pulled out Harry's invisibility cloak. She gave it to Ron.
"Just in case..." she said.
Ron took the cloak like it was a precious relic. He gave Hermione a long look, but did not ask any question, and simply nodded.
"Let's go." Ed said.
He got closer to Hermione, who passed the time turner's chain around both their necks, and then activated it. Ron saw their body collapse on the ground, and decided not to touch them. He simply put the invisibility cloak over them. Hermione and Edmund, as for them, found themselves exactly where they had left. Without Ron.
"What do we do now ?" Edmund asked.
"We have to make everyone believe that we are members of the Ministry of Magic. And then we falsify a visit warrant, and then we go to Azkaban."
"How exactly do we pass for members of the Ministry? Not to be rude, but we don't exactly have the right look."
"Yes. I was coming to that point. What do you think about identity theft in desperate situations?"
"I'm not sure I like where this is going..."
"There is a potion that lets you take someone else's appearance. I'm working on a few modifications right now, but in its current form, the effects last for about an hour."
"Do you have some of that?"
"Yes. I have enough for a month."
"One hour, then. Is that enough to break the guy out?"
"No, but we will take some again right before we leave Azkaban. The humans guardians won't be inside the prison, and the dementors are blind."
"Are you sure of what you're doing?"
"Yes."
"Then let's roll with that. How do we do it?"
"You're not gonna be happy..."
She explained him how the potion worked, which was rather hard for him to accept, and they decided they needed someone important's identity. They apparated in London, near the ministry of magic, and Hermione took them to a flat where one of her mother's friend was living with his family. Edmund was sent every day to investigate on whom they should steal hair from for the polyjuice potion, while Hermione stayed in the flat as it was safer for her. In the evening, he would come back to the flat, and make his report.