France, 1655. Tania, the daughter of a retired musketeer, is afflicted with extreme vertigo and subject to frequent falls. When her father is murdered she learns that he has arranged for her to attend Madame de Treville's newly formed Académie des Mariées in Paris. It is no finishing school: it is an academy for female Musketeers, socialites on the surface but dangerous, well-trained women who wish to protect France from downfall. Tania begins her training determined to get revenge for her father... but in doing so she risks losing everything she's ever wanted.