X-Men meets Beast Quest at the school for superheroes! An epic new adventure series from bestselling author Adam Blade - with amazing comic-book style illustrations.

General Gore's evil army has kidnapped Jack's friend, Danny. It's time for Team Hero to take the fight underground, right into the heart of darkness.

Students of Hero Academy beware - the invasion is coming!

There are FOUR thrilling adventures to collect in this series - don't miss out! Battle for the Shadow Sword; Attack of the Bat Army; Reptile Reawakened; and The Skeleton Warrior

And don't forget Adam Blade's other series: Beast Quet and Sea Quest

This is book 4 in Team Hero .

This book has been graded for interest at 7-9 years.

There are 128 pages in this book. This book was published 2017 by Hachette Children's Group .

Adam Blade is a pseudonym used by a team of writers.