" This isn't the first time I've used this, and the test subject showed no signs of impaired cognitive ability." " Who was the test subject?" asked Aurora." I test everything out on myself before taking it into the field." She stared at him. " You zapped your own brain?" " And it didn't do me any harm apart from the dizziness and the vomiting spells and the weirdly persistent ringing in my ears. Also the blackouts and the mood swings and the creeping paranoia. Apart from that, zero side effects, if you don't count the numb fingertips. Which I don't. "