A desperate quest begins in the port of Alexandria: site of the great lighthouse, the famous Library, and the tomb of Alexander the Great.
Codes, riddles, anagrams and hieroglyphics lead the young detectives down the river Nile to pyramids and sphinxes, temples and tombs, crocodiles and hippos. But what lies at the end of the journey? Treasure? Or death?

This is book 15 in The Roman Mysteries .

This book has been graded for interest at 9-11 years.

There are 272 pages in this book. This book was published 2010 by Hachette Children's Group .

Caroline Lawrence is American. She lives with her husband in London.