When Major Holly Short gets promoted to Commander of LEPRecon at Haven city, her friend Foaly, the tech-genius, delivers nothing but bad news. He relates to her the death of the human friend, Artemis Fowl's, father, and how Haven is under more danger. But the bad news doesn't end there for Holly... More human villains. Different colonies. New species. Higher technology. Shots in the dark. It's a brand new problem. Will the Haven Emergency Squad be able to relieve the rising tensions?

"Your father is in mortal danger, an old enemy has come back, and he wants revenge." "I've been blinded for 15 years, father. I think I deserve to know the truth." 15-year-old Hera thinks she has unerathed a whole new civilization. But she is mistaken. It isn't a new civilization, it's an old one. The same one her family members have kept a secret for so many years. Her father was determined keep the magical community out of her bounds, but little does he know, there was an unknown adversary who was just as determined to do the opposite. And when her father was suddenly the main target of an attack from an old enemy, he may have no choice but to abandon this promise altogether. Don't let appearances fool you. Nothing here is quite as it seems.

Set after the Last Guardian, Holly is instructed with a desk job: to help Artemis regain his memory. Holly doesn't expect much from the job, just boredom and a moment of jubilation when Artemis gets his memory back, then lives go back to normal, if you could call foiling evil normal. But Holly gets a lot more from these therapy sessions with the genius than she bargained for, the telling of the story gives her not-your-average trip back down memory lane and she discovers a lot of the genius' unreadable thoughts, and slowly gets his opinion of her, which grows from near nothing to something that Holly could never imagine. Holly, however, discovers a lot more about herself during these meetings and she slowly lets go of the past and thinks to the future. Needless to say, Artemis' therapy evenings become more and more about Holly as Artemis slowly comes to remember the elf he sees on a regular basis- and how much he loved her