One that fires a very strange ammunition,” said Berenice. “Not a bolt, but a scrived plate. A small one. Your son was almost certainly shot with such a plate.” She tapped her right temple. “It buried itself in his skull, and then his mind was twinned. With the enemy. Two things made alike. The enemy scrived his body, his very being, and its thoughts became his. It saw what he saw, its mind became his mind, and it told him what to do—and he did it, because his will was no longer his own.”