and then the driver twitches , its whole fractured body twisting oddly in one violent jerk - it raises its arm as if reaching out for something - but there 's nothing in front of it , nothing to reach for , seth is still on the ground at its feet - a point of light appears in the middle of the driver 's chest , just a small white spot at first but then exploding out in a shower of sparks so wild that seth scoots back on the sidewalk , grunting at the ache still running through his torso .