She just wanted to fit in. Then her hands started glowing.Ellie is fifteen, exhausted from moving, and desperate to belong. Her father's military career has dragged her family from Germany to Florida and now to a small Massachusetts town, where she's starting over yet again. She joins the swim team hoping to find her place, but when her time trials threaten to bump a popular senior from the lineup, she trades invisibility for a target on her back. At home, she's the forgotten middle priority: too old for carpool, too young to drive, stuck making dinner while her younger siblings effortlessly collect the friends she can only dream of.Then one night, Ellie wakes to find her hands glowing. She tells herself it was a dream, but her mother's horrified reaction says otherwise. When the glow strikes again at the worst possible moment, right before a dive at her first swim meet, Ellie realizes this is not something she can hide. A mysterious boy from a rival team slips her a note with a drawing of a light bulb and a phone number, hinting that she may not be the only one changing.Ellie has spent her whole life trying to blend in. Now something inside her is making that impossible. The question is no longer whether she's different. It's whether she's ready to find out why.