To Hermione's horror, Bellatrix emerged from the smog mere metres from Harry with murder in her eyes. With the Elder Wand in hand, he was able to withstand her onslaught, but even despite this advantage he couldn't gain the upper hand. Gritting her teeth and silently begging the  Felix Felicis  not to abandon her now, Hermione raised her wand and joined the duel, sending a stunner straight for Bellatrix.