Madame Koska & the Imperial Brooch

Meet Madame Koska-a fabulous haute couture designer and the owner of a new atelier in 1920's London who has a knack at solving crimes that simply baffle the police.
When a priceless brooch disappears from a museum in Russia, Madame Koska is suddenly drawn into the mystery. But who is Madame Koska? And what does the missing jewel have to do with her? Find out in her first adventure!