When 13-year-old Mia finally reveals a closely-guarded secret, it soon echoes throughout her school. She was born with synesthesia, a neurological cross-wiring that lets her see sounds, taste shapes, and smell colors. To Mia, the letter A glows with faded sunflower-yellow, screeching chalk sizzles with jagged red sparks, and her cat's voice puffs with orange-mango haze. How can Mia "the alien" find acceptance and self-worth?