Centuries ago, Earth's plants turned toxic, rendering life on the planet impossible, and humanity took to space to cultivate new homes. Myra Porter is in her first year at an elite school on the Moon to train and develop her Creer in math as a Number Whisper--like her famous Number Whisperer parents. But she's crumbling under the pressure, she doesn't fit in, and worst of all, the tattoos that signal her Creer growing aren't developing. In her heart, she knows she doesn't have a Creer, and soon, everyone else will, too.