He had cursed the two Death Eaters before they saw him coming. Now he was almost upstairs, holding his wand prepared.
Those lessons with the DA really paid off! George thought. His heart pounded as if he had just competed in the Quiditch World Cup and his lungs had a hard time collecting all the air he was breathing in.
He slowly shuffled against the wall. The hall was empty. George decided he couldn't stay against the wall forever and carefully but quickly ran to the other side. He put his good ear at the door and listened. He could hear Bellatrix's voice but couldn't understand what she was saying.
Hold on Fred, here I come!
George yanked the door open and stunned the two Death Eaters that were standing in his sight.
"Don't move!" He yelled at Bellatrix who was about to raise her wand. "Or I'll curse you to the other world!"
He took a few moments to oversee the situation. Bellatrix Lestrange was standing just a meter or two away from him and Fred was standing against the wall, apparently held up by magic. His face was all white and George noticed a lot of red on his chest.
"Curse me to the other world, would you Georgie?" Bellatrix asked a bit amused.
"Don't call me like that!"
Bellatrix didn't pay attention to that statement.
"What are you waiting for?" "I'm sure you want to kill me…" "I'm the one that killed your friend Sirius Black, the one that hurt your brother."
"Don't listen to her George!" Fred suddenly yelled. "She's just holding you here!"
It happened all too fast. George's lost his focus on Bellatrix to look at Fred and in that second, Bellatrix Lestrange had raised her wand.
Crucio!
George yelled and fell on the ground. Every single muscle in his body burned. He could hear Bellatrix laugh and Fred's yells.
Suddenly Fred's voice stopped and Bellatrix's laugh turned into a scream of confusion and anger. The pain in George's body slowly went away and he raised his head.
A figure of silver light was holding Bellatrix against the wall in the right corner. She was cursing the silver light with every spell she knew but it didn't harm the female deer.
He didn't have time to ask himself how the Patronus got here. George stood up and ran towards Fred. He grabbed his twin around the waist and started to Disapparating. Suddenly he heard Bellatrix yell a curse.
Sectumsempra!
George screamed when he felt a huge sting in his chest. The last he saw of the small room was the silver light falling apart and Bellatrix Lestrange coming towards them, but they were already gone by the time she got there.