BLEACH

He thought being right was enough. Then she read the sea with her ribs.

Marco Reyes is seventeen, the brilliant son of a marine biologist, the youngest student to ever take advanced ocean-chemistry classes at the Universidad de los Andes. He has been diving the same coral reef off Cartagena, Colombia since he was nine. He has every paper that has ever been written about it memorised. He has built, in his bedroom at four in the morning, a forty-eight-page document on the bleaching of the western flank.

The document is correct. It changes nothing.

What changes Marco is Lucía Castillo - a free-diver his own age who can stand on the gunwale of her grandfather's boat at dawn, close her eyes, and feel through her ribs what the ocean is going to do that day. Lucía has been trying to tell anyone who will listen, for two years, what is happening to the reef. She does not have a forty-eight-page document. She has her body. And her grandfather. And, eventually, a small green light on a cracked tablet that pulses when she is least expecting it.

When the kind man in the linen suit makes Marco an offer - an advisory role, a salary, a flat in Bogotá - Marco almost takes it. What stops him is a girl on a dock at sundown saying please be sensible some other time, but not tonight.

For readers ages 13 and up. The most romantic book in the Climate Keepers cycle. Warm Caribbean light, Spanish-speaking Cartagena, ocean acidification, a livestream rescue from a dredge pipe, and a first love that holds because both people are honest about how nearly they were not.

This is Book Three of The Reckoning Each book stands alone. Book One: High Water. Book Two: Dry. Book Four: Greenwash. Book Five: The Last Island. Finale: The Gathering

"People do not march for chemistry. People march for the boy and the girl."