Artemis Fowl: The Eternity Code begins with Artemis planning a meeting with Jon Spiro. Artemis has made the C Cube, which is a technological genius construction the world has never laid its eyes on before, nothing like it has ever been created. Jon Spiro doesn’t want anyone to have the construction, which is why he tells Artemis that they can meet in London for a trade. However, Spiro manages to steal the Cube from Artemis and simultaneously shoots Butler, though he gets healed by Holly.
The team begins making a plan of how they can retrieve the Cube. The fairies agree to help as their secrets and anonymity is on the line. Spiro doesn’t manage to unlock the eternity code, which renders the C Cube useless, and he understands that he will need Artemis help. Spiro plans how he should capture Artemis, but one of Artemis’ moles in Spiro’s camp overhears the conversation and tells Artemis of Spiro’s plans.
Artemis then has time to make his own plan on how the retrieve the Cube. Spiro captures Artemis though Artemis delays the time he spends on unlocking the C Cube, thus letting his team have time to break into the building Artemis is in. The heist goes as planned, and Artemis manages to recover the C Cube, erasing himself from the surveillance before the Police arrive.
Foaly wished to wipe the memory of Artemis and his companions of the fairies, but Artemis is one step ahead of them. He and his friends are all wearing contact lenses that breaks the memory stealer. Artemis has also scattered serval files containing his memories and fact of the fairy world that he can retrieve later.
