Artemis is still trying to rescue his dad. As luck would have it, he gets picked up by the Lower Elements Police for questioning to see what he knows about Mud People (humans) trading illegally with goblins. As a result, they end up working together to try to solve each other's problems.
This is one of those rare books where the sequel is as good as or better than the original! I really enjoyed reading this book. As soon as it started, I was put right back into the world of Artemis Fowl. All the original characters are back (with a couple new ones) and Artemis does a little growing-up, making him a more interesting and likable character. Like the Harry Potter books, these books are really ensemble stories with the secondary characters nearly as important as the main. Where would Harry be without Hermione and Ron (or even Snape and Draco Malfoy)? Similarly, Holly the elf, Foaly the centaur, and Butler the butler, er, bodyguard make Artemis' story more fun. If you like adventure and fantasy, check out this series. I stongly suggest reading the original Artemis Fowl first in order to become familiar with the characters and the modern world of fairies.