suddenly i feel like there are invisible marks of my mother everywhere , on every wall and doorknob and pillar . something happened , though , right around the time i turned thirteen . no way im gon na take the fall for this , he muttered , fighting his way through the tent flaps . she nods and then shifts her gaze to the others . he pushed at her with his talon . `` yeah , it 's some kind of genetic thing . `` it has n't been the best vacation of my life , '' he said . 