It's been twenty years since the events surrounding the Island of Fog. Twelve-year-old Travis Franklin, son of Hal and Abigail, is about to become a shapeshifter like his parents – and just in time, because there's been a spate of poaching in the area. When Travis witnesses a unicorn snatched from its herd, he leaps into action in his brand-new guise as a wyvern! Only thing is, his rescue attempt goes awry...