After discovering that The Outcast was none other than their grandfather, Nathaniel Hartford, Amy and Dan Cahill know that they have a race against time to stop him from recreating one of the world’s most notorious disasters – a nuclear meltdown. All is not how it seems, however, and soon the young brother and sister are turning to a former enemy in order to help them save mankind.

Mission Atomic is the latest instalment in the ’39 Clues’ series of adventure novels for children, the first having been published in 2008. I admit that, as an adult, the series has become a guilty pleasure of mine and the next book is always pre-ordered on Amazon as soon as I finish the current one! The next book, Outbreak, is reported as being the final one.

Initially, I was drawn to the series because of the treasure hunt aspect – children are sent on a mission around the world to locate the ingredients of an age-old serum. What I have enjoyed the most, however, are the historical aspects and how children are being introduced to some of the infamous (and sometimes not-so-famous) events that have occurred all over the world. Even as an adult, I often found myself googling some of the places that were mentioned and discovering new facts.

Like the other books in the series,  Mission Atomic is a quick and easy read. I admit to being a bit disappointed that the series is coming to an end!