Dodging Guppy's thrust, Koren goes straight into Will's swing, and ends up with his throat cut.

A split second later, Atton's sword drives through his chest in a splatter of blue liquid. There's a brief pause, before Atton sets his foot against Koren, and pushes to drag his sword out.

Koren wobbles on his feet for a moment, looking like he's about to fall, before bringing his sword down on Atton's shoulder.