Secret of Cerulean Sand(2002)

Secret of Cerulean Sand is a period adventure series following Jane, whose childhood dream of building a flying machine becomes an obsession when her brother George is executed for treason after seeking a legendary blue sand in distant Asian lands. When Jane receives an unsigned letter containing the mysterious floating sand, she knows George is alive. She embarks on a perilous journey east with new companions to find her brother and clear his name, uncovering secrets that challenge everything she believes. As Jane navigates treacherous landscapes and hidden truths, she discovers that some mysteries may be meant to stay buried. The series blends historical intrigue with fantastical elements, exploring themes of loyalty, ambition, and the cost of pursuing the impossible.