Harry worked hard in the heat, and was drenched in sweat. He shivered. He felt dizzy and fell to the ground. He knew what was coming.
He opened his eyes groggily and vomited. Then he stood up and wrapped the invisibility cloak around him. It clung to his sweaty limbs and Harry felt sticky. Then he walked back to his room. He was there, sitting on his balcony with Hermione. They wore different clothes. It was a different day. She cradled a cup of tea in her hands, her face lowered and her back bent. She spoke to him.
"There's still time to change your mind, you know," she said. Harry felt that she was speaking more to herself, than to him. She didn't look at him, staring out into the middle distance as he had done before.
"I'm not changing my mind Hermione." Harry felt a rush of nostalgia, as though Hermione was trying to prevent him from carrying out some foolish plan at Hogwarts.
"I didn't think we could do it, you know," she said, turning to face him this time. "I didn't think the Muggles would want to work with us, after the wars and all. But they did. They are quite remarkable, the Muggles. Their science is quite ingenious. Their feats of engineering without magic. Although, Bill and Fleur helped them quite a bit with thus project, in the testing and all that."
Harry only half listened, he watched Hermione intently. The familiarity of her face. She sighed a sigh of the wisdom. She took the future Harry's hand and they walked.