Just when it looked as if Ethan Fortune might be able to breathe a warm sigh of relief at getting away from the icy world of Tran-ky-ky, he was ordered to stay right where he was. It seemed the scientists at the outpost of Brass Monkey had spotted something odd - an isolated and ominous atmosphere hot spot far to the south. Only Ethan, along with the huge, hell-raising Skua September, had the local knowledge and the persuasiveness to get the Tran to mount an expedition. Only the giant icerigger Slanderscree could cope with the conditions. Knowing you're wanted may warm the cockles of the human heart but Ethan knew at once that the rest of him was going to be exposed to freezing cold, considerable danger and a whole lot more of the adventures that kept coming his way...