He saw the flames and he screamed angrily as he dove to the side to avoid them. He'd had more than his fair share of fire in the past month and the idea of this man using it to fight him enraged him. He couldn't possibly understand Walden's loss or the losses of the other Death Eaters but the older man took it as a personal attack.
Walden lunged forward with a growl, wand ready, and Crucio resounded in his head as he stared at Aloysius.