Heroes of Light and Shadow

by Conor Forrest

Interest age: 9 to 11
Reading age: 10+

Published by O'Brien, 2026

About this book

On a school trip to the Natural History Museum in Dublin, Oisin Ryan overhears three massive, scary-looking men discussing the details of a plan to break into the museum at midnight.  

He tells the security guard, who just wants him to ‘clear off’; he tells his teacher, who doesn’t believe him. So what choice does Oisin have but to come back at midnight and investigate on his own? (OK, he could have called the police, but where’s the fun in that?)    

What Oisin witnesses is terrifying but fascinating. Monsters with axes; beastlike, with flat noses, pointed ears and thick horns.  

The next thing he remembers is being rescued from his own coffin when he finds out that he’s not quite who he thought he was. Turns out he is a distant relative of a mythical superhero.  

As ancient Irish legend is brought vividly to life for the 21st century, readers are plunged straight into the action which does not shy away from blood and gore. 

Featuring Fionn MacCool, the Morrigan, the Tuatha, the Fomorians and other characters from Irish folklore, this fantastical adventure builds to a climactic final battle.   

Witty, complex and engrossing.  

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