Secret scientists of London

Organizing a society to support women scientists while performing clandestine missions for the Crown, genius noblewoman Lady Violet Hughes secretly falls in love with her bodyguard, Arthur Kneland, who investigates a shadowy threat infiltrating Violet's laboratories.

After developing an ambitious plan to establish England’s first woman-owned engineering firm, Margaret Gault is threatened by greedy investors and the irritatingly attractive Earl Grantham.