In the heart of the Australian Outback, a ball of flame marks the crash of a Zeppelin into the rim of the Arltunga caldera where rare threnium is harvested. The disaster grounds the gliders towing nets of Belgian lace through the threnium-laden mists. Sought after by the Allies and Germany alike, threnium gives steel astounding tensile strength. But the Zeppelin's flames bring more than a momentary halt to production. Ginna MacReedy, the burned but lovely sole survivor of the crash, turns camp life upside down, threatening the double-dealing strategies of the camp's overseer and pitting two brothers against each other as they grow to love her. A tale of romance, death, intrigue, chemistry, and flying, set in the Outback between the two great world wars.