To save the coast, she must bind her maps to the man who once starved her islands.
Tide-cartographer Talia Quill knows exactly what Prince Torin Hale's mercy cost. He stopped his father's fleet from razing Varelo-then maintained the blockade that left her people hungry and her family broken.
Now a widening fracture is swallowing harbors, overturning currents, and dragging both their nations toward ruin. Closing it requires Talia's command of living water and Torin's power over the Crown's ancient boundaries. The court will recognize their shared authority only if they enter an emergency marriage bound in salt.
Talia agrees on her own terms: separate rooms, separate counsel, no claim on her body, her maps, or her people's consent. But six weeks of dangerous work turns hostility into reluctant trust-and reluctant trust into a desire neither of them can dismiss.
Someone is altering the charts that hold the coastline together. To expose the conspiracy before the third spring tide, Talia and Torin must uncover the truths they have each kept hidden, even when honesty could cost him the throne, her the islands' trust, and both of them the future they have only begun to want.
In a world where maps can move the sea, love may be the most dangerous boundary they choose to redraw.