The boy raised his wand, the way he held it was off. Less like a wand and more like he was holding a pen, as if he was about to draw. The movement lacked the harshness that Harry had used and as a result the slight shimmer that appeared from his wand seemed to lack the strength Harry had. Raising his own wand Harry, with tight fluid movement cast the knockback jinx. The speed at which it flew from his wand always impressed Harry since no one else in the class's spells travelled as quickly as his own. The spell shot forward, slamming into the shimmering shield and breaking it. Harry watched as his partner was sent flying backwards, before he slammed into the wall he seemed to slow. Turning to look behind him Harry saw their defence professor standing with his wand pointed at Blaise.