The Miscalculations of Lightning Girl
What it's about: "Lucy Callahan was struck by lightning. She doesn't remember it, but it changed her life forever. The zap gave her genius-level math skills, and ever since, Lucy has been homeschooled. Now, at 12 years old, she's technically ready for college. She just has to pass 1 more test — middle school!"
Ages it's aimed at: 8-12 years
The Miscalculations of Lightning Girl by Stacy McAnulty ($14, originally $17)