Isabella lives on a tropical island lost in the ocean. She is the daughter of a cartographer who passed on to her all his knowledge about this corner of the world. Part of the island is forbidden, and an infernal demon guards it—at least that is what the legend says. Many centuries ago, they tried to defeat him, but it didn’t work. Now, when the peace of their sleepy little town is disturbed by news of a girl’s disappearance and the sudden appearance of terrifying monsters, it becomes clear that someone has crossed an ancient boundary. Now only Isabella’s selflessness and brave heart—within her veins flows ink, and she knows how to read the stars—will help save the island.