Alternate History (гет)

Snape's first Defence lesson goes horribly wrong for Hermione when she is caught in a freak spell explosion and finds herself in a strangely altered version of the world she knows. While desperate to find her way back to normality, she can't help but get involved when she realises that her memories of things that suddenly never happened could be the key to thwarting the plans of this world's Voldemort. She has to wonder, though... will she ever be able to get back to her own reality? And even if she could, would she really want to go?