There are two notable examples of foreshadowing in Artemis Fowl. The first occurs near the beginning of the novel, when Holly sets out to do some recon on the escaped troll: "Root was right to be nervous. if he'd known how this straightforward Recon assignment was going to turn out, he would probably have retired then and there. Tonight, history was going to be made. And it wasn't the discovery-of-radium, first-man-on-the-moon, happy kind of history. It was the Spanish Inquisition, here comes the Hindenburg, bad kind of history. Bad for humans and fairies. Bad for everyone" (40). In this moment, readers are notified that the story will quickly spin out of control to disastrous effects, though they don't know exactly how that will happen.
The second moment of foreshadowing occurs when Artemis and Holly converse with each other for the first time. Holly tries to intimidate Artemis: "'Oh really. Tell me, boy, have you ever met a troll?' For the first time, the human's confidence dropped a notch. 'No, never a troll.' Holly showed more teeth. 'You will, Fowl. You will. And I hope I'm there to see it'" (119). Little does Holly know that Cudgeon will soon be releasing a troll within Fowl manor and she will have to fight it all over again. However, it foreshadows this moment, which is also the moment when Artemis realizes that he is not in complete control.