“Those blue lines in the sky? Can we navigate by those?” “Best we can tell, they are like clouds—they shift and flow. Never stable enough to use as a means of navigation. And there are no features, other than this island, that we’ve been able to locate.” “Compasses?” “Do nothing,” Ruen said. “As if there’s nothing for them to sense. There probably isn’t. To triangulate, we’d need to plant radio beacons