A Hexual Misfortune

What does a magical scavenger hunt, hexed cookies, and a super-powered older brother have in common?
Piper Lancaster.
Despite being a witch with no magic of her own, Piper has always loved the supernatural world. So when she catches her scumbag boyfriend proposing to another woman, hexed cookies seems like the obvious answer.
But when her brother's human best friend eats some of those cookies, Piper finds herself on a mission to fix this hexual misfortune.
Will this dud witch be able to right her wrongs before her brother gets home?
She's only got 48 hours to save the world... ahem... her brother's best friend.