Scarlett has never left the tiny island where she and her sister Tella live under the iron rule of their powerful and cruel father. Dreams of escaping to Caraval—the far-away, once-a-year performance where the audience becomes part of the show—seem impossible, especially now that her father has arranged a marriage for her.

But when a long-awaited invitation to Caraval finally arrives, Tella whisks Scarlett away with the help of a mysterious sailor. Yet as soon as they reach their destination, Tella is kidnapped by Legend, the enigmatic mastermind of Caraval. This year's game revolves around Tella, and whoever finds her first wins.

Scarlett has been told that everything that happens during Caraval is only an elaborate performance. But as the lines between illusion and reality blur, she must find Tella before the five nights of the game are over—or risk losing her sister forever.

Step into the magical and treacherous world of Caraval, where nothing is quite what it seems. Will Scarlett unravel the mysteries in time, or will she become lost in the game forever?