If I was a moron I would write this review in one word - Amazing.
I bought the entire six book series as a package a fortnight ago, relying on the reviews of others - promising me that the series was as fantastic as it was made out to be. By the fact that I'm reviewing the final book within a fortnight - you may understand just how gripping these books are.
In guide to "Zero Hour" independently: I think it's a fantastic ending, and I hope Walden continues to write, either reviving Overlord and continuing the series, or - preferably using the same characters - creating a new series continuing on from the end of "H.I.V.E". - "Zero Hour" is another brilliantly written, and thoroughly gripping story. The unique concept of Villanous Education and aspects such as the "Animus" fluid, and "G.L.O.V.E" do not cease to amaze me.
NOTE: I would advise reading the series from the beginning. Not only as I think they're fantastic books! but because the storyline is a complex one if you are not introduced to the characters from the beginning. The idea of Overlord in particular requires explanation to seem believable and maintain the books realism, so I would urge anyone interested in looking at this series for the first time to see "Higher Institute of Villainous Education" - The First Book.
For those of you who have read the first five, and are sitting on the fence over buying the sixth, please please do - just so I can prove you wrong for doubting it if nothing else! I just hope you enjoy this book - and the series - as much as I did!
Many Thanks - Angus Johnston - 15 years Old