Plots, spies and inventors abound in an epic adventure set between London and Paris ... Mischief is afoot, and Queen Victoria is not amused. Her stalker must be stopped.

Forget the cavalry - this is a job for Her Majesty's League of Remarkable Young Ladies! The League's newest recruit is Winifred Weatherby, a feisty girl-genius and gadget-maker. Winnie's creations are remarkable, but is she clever enough to protect the Queen - and achieve her own dream of winning the top prize in Paris for young inventors . .