Things Mischa “Ish” Love will miss when she goes to Mars: lying on the living room floor watching TV, ice cream, her parrot Buzz Aldrin. Things Ish Love will not miss when she goes to Mars: mosquitoes, heat waves, missing her former best friend Tig.

Ish is convinced that 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 (not that she’d ever admit that to anyone, least of all herself). 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.

Longing to be one of the popular girls in her new town, Kammie Summers has fallen into a well during a (fake) initiation into a club whose members have no intention of letting her join. Now Kammie’s trapped in the dark, growing increasingly claustrophobic, and waiting to be rescued—or possibly not.

As hours pass, the reality of Kammie’s predicament mixes with her memories of the highlights and lowlights of her life so far, including the reasons her family moved to this new town in the first place. And as she begins to run out of oxygen, Kammie starts to imagine she has company, including a French-speaking coyote and goats that just might be zombies.