You both grew up as castaways on a desert island. Now her belly is starting to swell and neither of you knows why...

Ten years ago the sea took everything from her except one person. Now that person is the father of the child growing inside her — and neither of them has any clue what’s actually happening. On an island with no doctors, no elders, and no rulebook, Mira is figuring out her changing body the same way she's figured out everything else: by watching, guessing, and trusting the one person who's never left her side.