Haphaven

"Ever superstitious, Alex Mills will do anything to avoid a jinx--picking up pennies, knocking on wood, collecting rabbit's feet ... you name it. That is, until she steps on a crack and it actually does break her mother's back. To save her mom, Alex must journey through the end of a rainbow to Haphaven, the world from which all of Earth's superstitions draw their power. All she needs is a rabbit's foot to save her mom, but the lucky article won't...