Mandy wasn't sure what was going on, why Terence was doing this to Terry. From a Pureblood perspective, she knew Terry was certainly a nuisance, but he wasn't a threat by any means. She didn't know what was going to happen to them, and she felt sick that she'd been forced to be a part of it.
She felt the loss when he plucked her wand out of her hand, letting out a soft sob as she realized that she would probably never have it back again. It was irrational, but she couldn't help but remember that day nearly nine years ago when she'd been chosen by that wand. It was a part of her, and it almost felt like a loss of limb to have it in his possession.
A quiet gasp was caught in her throat when he casually mentioned messing with her head. And then he mentioned so casually that she would have to go with Terry. She felt sick to her stomach, not sure which she would prefer. She let him lead her to Terry, only half-resisting. She knew there was no way she could overpower him and escape. It seemed to her the logical choice would be to go along quietly.
She considered just not touching the Port Key, but it seemed he'd thought of thought. Terence grabbed her hand and held it against the Port Key, while his other arm wrapped around her to hold it steady in that hand and press against Terry, thus entrapping her between himself and the Port Key and Terry.
Silent tears fell from her eyes as she felt that lurch in her abdomen. They were spinning, flying through space in the matter of seconds. When they landed, she stumbled to her feet, wrapping her arms around herself, afraid to take in her surroundings.