The Green Mill Murder by Kerry Greenwood

Phryne Fisher is doing one of her favorite things --dancing at the Green Mill (Melbourne's premier dance hall) to the music of Tintagel Stone's Jazzmakers, the band who taught St Vitus how to dance. And she's wearing a sparkling lobelia-coloured georgette dress. Nothing can flap the unflappable Phryne--especially on a dance floor with so many delectable partners. Nothing except death, that is. The dance competition is trailing into its last hours when suddenly, in the middle of "Bye Bye Blackbird" a figure slumps to the ground. No shot was heard. Phryne, conscious of how narrowly the missile missed her own bare shoulder, back, and dress, investigates.