This book is the seventh in a unique series that was to run 10 books. Originally it was to be 10 books by 7 authors in a single continuous story arch, with online games, and clue hunts and more, at the 39 Clues website. Each book now seems to be getting better than the one before, and also leaves you hungry for the next instalment. Scholastic has also now announced an 11th volume, The Black Book of Buried Secrets, which will be out shortly after book 10.

Peter Lerangis has written a wonderful piece pivotal to the story arc. Amy and Dan Cahill are still up to their neck in the hunt for the 39 clues. They are learning to trust again. This time they are in South Africa, and the historical figures explored included Winston Churchill and Shaka and they also find out more about their grandmother Grace, and their parents. Lerangis gives us a lot of real history in under 200 pages. Once you start reading this book you will not want to put it down, even more so than some of the others in the series.

The last few books had become very dark and though the race for the 39 clues is still on, and some factions are becoming more and more dangerous, Dan and Amy seem to be finding a better balance. This is another amazing book in an incredible series.