Bella ran towards the alley exit, without turning back to see who was hit by the curse. She was at the alley's exit, from where she'd be able to disapparate. Just as she began to disapparate, a bone breaker from Tonks hit her non-wand arm, and she was gone in a wisp of black smoke, yet a package in non-descript brown bag fell as she retreated to Riddle Manor.