Was it because they hadn’t been ready to act? Or was this a diplomatic mission gone wrong? She had a fairly good idea how they had gotten injured, and why the spell had failed—the creatures had somehow managed to breach the protective bubble, and the spell had taken them along with it. Because of the complex nature of teleportation spells—especially when it came to their inertial dampening—they sometimes caused injury when the caster miscalculated the energy requirements. Still, they were typically designed to fail safe; Starswirl had made great strides in that direction. There were few unicorns who had access to enough power to override the matrix—Twilight was one of the few who could, having inadvertently burned Spike by carrying him as an unwitting passenger once. Perhaps these creatures had done a similar thing.