Hermione was a few strides ahead of him when the first one caught up to them from the side. Theo smelt the rotting stench of bodily fluids and decaying organs before his eyes were able to see. He ducked his head and dove to the ground as two Inferi collided midair above, having come at him from either side. He rolled onto his back and shot a  cresendo into the fray above him. They exploded into fragments of rotting flesh and ash-white bone. Some of the bones pierced through his clothes, splintering deep into his skin. This just angered him more; they were stopping him from reaching his bond and he didn't have time for this. He grabbed a long thin bone that had fallen next to his head - a femur by the looks - and swung it towards another, lodging it into the chest cavity before he yanked it upwards all the way to its chin and left it in place. The skull popped from its spine and he used his wand to light the flaying corpse on fire.