Hermione watched on, disbelief clearly written on her features. Lucius stepped aside at the last moment, allowing the spell to crash straight into the wall, spraying plaster at everyone within reach. She knew that the senior Malfoy would not go to his death so willingly. She grasped Snape’s arm as she tucked her wand into her sleeve, reaching down to her boot where there was a knife hidden within a sheath.