Hermione

"Please, just let me go!" I sobbed. "I promise I won't tell anyone!" The silence was broken by loud laughs. Voldemort was studying me carefully. "Did you hear that, my friends? She promises not to tell anyone!" The Death Eaters laughed again. Voldemort looked at me with a cold smile on his face. "Let's see how The Chosen One will beat me without Miss Granger, the brains behind his escapes." At once, Voldemort tossed me an object, and without thinking I caught it. The Death Eaters laughed cruelly as I vanished from sight.'

Hermione Granger had always known that being Harry Potter's best friend would be dangerous, but up until her seventh year, she never truly realized just how dangerous it could be. During her time in number Diagon Alley, she's caught by the Death Eaters on the front porch. After being taken to Voldemort, she's transported back in time to when Voldemort was first powerful.

With the help of the Order of the Phoenix, Hermione has to get back to her own time and save Harry before the final battle.