Jane Blonde, Sensational Spylet, is seeing double on her third incredible mission! Janey Brown thought she was an only child. Now 'Joanie' has turned up claiming to be Janey's secret twin! But when Jane Blonde is posted to Australia to investigate a suspicious sheep farm, it becomes clear that Joanie isn't quite what she seems. Has Janey exposed an undercover cloning operation? Soon Janey's dodging more than boomerangs: there are multispies on the loose - including Jane Blonde's own evil twin!