Mischa "Ish" Love knows she'll be one of the first settlers on Mars. She's applied to - and been rejected from - the Mars Now project forty-seven times, but the mission won't leave for ten years, and Ish hasn't given up hope. She also hasn't given up hope that Tig will be her best friend again. When Ish collapses on the first day of seventh grade, she gets a diagnosis that threatens all her future plans. As Ish fights cancer, she dreams in vivid detail about the Martian adventures she's always known she'd have - and makes unexpected discoveries about love, fate, and her place in the vast universe.