Twelve-year-old Ava is digging through her family's messy junk drawer when she finds a completely ordinary-looking blue pencil. But during a stressful math test, she discovers this pencil is anything but normal. When she writes a factual question in the margins, the pencil takes over and writes the correct answer back to her. At first, having a magic pencil is the greatest thing ever. Ava and her best friend Sophie have a blast asking it questions, acing their quizzes, and navigating the confusing hallways of middle school. With all the answers literally at her fingertips, Ava's confidence skyrockets. She finally feels like she is in control of her life. But the pencil can only answer factual questions. It cannot predict the future or explain people's feelings. And when Ava asks a question about her own family, the pencil reveals a dark, hidden truth she never expected. Suddenly, Ava realizes that knowing all the answers might be more dangerous than she thought, and some secrets are better left undiscovered.