Luc awakens to find his village nearly destroyed. There are now strangers in his cabin. Who are they and why are they here? They are the Brotherhood of the Grimm. They travel Europe, researching the old wives tales of spooks and devils, disproving the ones that aren't real, and fatally dealing with the ones that are.

When he learns that two children from the village are missing, Luc enlists the aid of the mysterious but knowledgeable strangers. Their sister Nathalie's misgivings disappear after the village is reduced to ruin by the witch of the woods, and she agrees to go with them on the perilous daunting task.

A new world of what is real and what isn't opens before them as they encounter spells, enchantments, alchemy, and evil. Will they find the twins? Can they trust the Brotherhood? Can they trust each other?