Hermione studied the crystals. The great academian in her was enthused by the challenge of finding out how they worked. She closed her eyes, as she'd seen Harry do, tried to focus on that subtle wave of energy that they were emitting. She could almost grab it, but it was tantalisingly beyond her reach. It was like trying to catch a cloud with her fingertips. She looked at the crystals again. Pale pink for the most part, but every now and then, a shot of black passed over them. And every time they did, Hermione felt a tinge of shock in her chest.