“The Ra’zac remain pupae for twenty years while they mature. On the first full moon of their twentieth year, they shed their exoskeletons, spread their wings, and emerge as adults ready to hunt all creatures, not just humans.”
“Then the Ra’zac’s mounts, the ones they fly on, are really . . .”
“Aye, their parents.”
. . . Galbatorix’s most feared assassins are a couple of kids who have to get rides from their parents to and from work.