Then Hermione went to make her offerings alone. She was deeply curious to have a better look at the Temple of the Moon by herself, fascinated as she was by the strange energy that radiated from the standing stones in a hum of low-level vibration. This, she reasoned, was down to the quartz content of the crystals that made up the stone, having read a little bit about crystal magic after Harry showed her the ones that captured his bad dreams.