Jervis successfully put those "thoughts a brother should never have" into his sister's mind.
The years went by and he convinced her to embrace her condition; to see it as the gift it is. She never saw a reason to fear her beloved brother. After all, he loved her and cherished her. He would take her to amusement parks if only to watch her smile all day long.
Alice adored Jervis' hypnosis trick. Those who bullied her would end up missing the next day, shop owners would let her leave with anything she desired for no charge, and throughout it all, she was never aware of being hypnotized herself.
Jervis loved his dear, sweet Alice. He loved the way her blood brought out the true sides of people. No one would dare harm her so long as he was nearby. That is, until they took a trip to Gotham and he lost her.
Everything changed that day.