Magic is real. But so are monsters.

Oisin dreams of being a hero, like the ones he reads about in books. So when he overhears a plot for a midnight raid on a Dublin museum, he knows this is his chance.

But Oisin soon realises that heroes must fight monsters. Dark things that lurk in the shadows – like the sinister Fomorians – don’t take kindly to those who get in their way.