Colorado Bureau of Investigation Agent Frances Cash investigates after a billionaire's son and his new wife are kidnapped and murdered by a gang of eco-terrorists at a park where extinct animals are brought back through genetic manipulation.

Teen Sherlock battles a monstrous adversary on a mission to Ireland with his brilliant brother, Mycroft. Young Sherlock is thrown into a tangled web involving a spiritualist whose powers have attracted the attention of governments around the world. At the castle where the medium is demonstrating his "gift," Sherlock finds a household in turmoil. Servants and some of the guests are frightened but who--or what?--has terrified them so much that nobody...