Chess prodigy Sophie Peshka inherited her love of the game from her grandmaster father. But now that he has been imprisoned in the dungeons of the Winter Palace in St Petersburg by powerful Empress Catherine the Great, Sophie must use all her strategic skill and cunning to help him escape.

Part of Sophie’s plan involves an incredible chess-playing automaton called the Clockwork Queen, but will the Queen be able to outwit the Empress in a game where the stakes are a matter of life and death?

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