In a world where dreams of flight are within reach, Jane's life is forever changed when her mother passes away at her birth, and her father remarries to a woman with a son, William, who harbors a deep-seated resentment towards his new family. As Jane grows up, she shares her father's passion for inventing a flying machine, but their hopes are shattered when George is reported executed for treason in pursuit of a mysterious cerulean sand that could make flight possible. Convinced that her brother William is still alive, Jane receives an unsigned letter containing a handful of pale-blue sand that defies gravity, and she sets out on a perilous journey to the East, driven by a burning desire to clear her brother's name and unravel the mysteries that lie ahead.
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