Tamsin comes from a family of witches. At her birth, her grandmother prophesied that she would become one of the most powerful of all — but Tamsin’s powers have never manifested, making her odd one out in the clan. If this were Harry Potter, she’d be a Squib.
Unsurprisingly, Tamsin is insecure about her magical deficiency. When a stranger comes to the family’s shop, looking for someone to help him find a lost item, Tamsin’s insecurity leads her to make a fateful mistake.