This is a great read if your into action, spies, and cool gadgets. It is one of the better books in the series and I would recommend it to anybody.

This book is a real disappointment

This is a very good book. I especially love that Alex works with the CIA. My only complaint about the book is that it was slow moving for the first one-hundred pages. Otherwise, it was a very good book just as the rest of the series. I recommend this book for 12 year olds and older. -Little Young Me 🤗

This is probably the slowest moving of the Alex Rider series. It usually takes a while for Alex to get into his mission, but in this book he isn't in Cuba going after his enemy until over 100 pages into the book. The beginning drags and sorta scared me into thinking this wasn't going to be a good book. But, in the end, it's amazing!

This book was epic!😜

This book was outstanding. I couldn't stop reading. I love skeleton key!

For anyone who likes action or mystery very good plot the book is awesome

Very good and stunning just like the movie Babylon A.D

Love the Alex Rider series. Can't wait to read the other books

I love the Alex rider series!