Artemis Fowl: The Eternity Code (book 3)
When Fowl meets Chicago businessman Jon Spiro to show him the Cube, Spiro ambushes Artemis and steals it. In the process, Butler, his bodyguard is killed by one of Spiro's staff. However, Artemis manages to revive him with the aid of cryogenics and fairy healing magic, courtesy of Captain Holly Short of the LEPrecon squad. Unfortunately, the healing does not work entirely as planned. I DIDN'T WRITE THIS! This book is by Eion Colfer. No copyright intended.