Xander's classmate Karim seeks him out to help solve the mystery of a missing amulet -- an amulet that is said to have the power to stop time. As Xander and Xena attempt to find the amulet, missing since Sherock's time, they use the skills and friendships they have developed since first finding out who their anscestor was.

Better than book two, plus I think Egyptian history/gods are fascinating ( )

Xena and Xander are the descendants of the great Sherlock Holmes! They inherit his secret book of unsolved cases and in this edition tackle the case that time forgot. Their mission is to discover a secret Egyptian water clock that has the ability to stop time! The two must race through London in order to decipher hieroglyphs, interpret clues, and find the amulet all while going to school, dealing with bullies, and using public transportation and getting home by curfew! This book is a quick and easy read that remains action packed and entertaining throughout! ( )