Peregrine Fisher is unexpectedly summoned to a meeting of the Adventuresses' Club of the Antipodes, where she learns some incredible news. When fellow adventuress Florence Astor is accused of murder, Peregrine jumps at the chance to help on the case. Detective James Steed, initially dismissive, quickly finds Peregrine's flair for investigating and headstrong nature leave him little choice. A second shocking death occurs and Detective Steed's boss, Inspector Sparrow, demands the case be brought to a close with suspicious speed. With Sparrow issuing threats, time is running out for Peregrine. It seems she's set herself an impossible task, but then, as Detective Steed says, 'never underestimate a woman named Fisher'.