Obsidian

As England shivers beneath the snows of a severe winter the forecasters failed to predict, fifteen year old Finn Carruthers lives a life unburdened by adventure or drama. All that is about to change when he starts suffering from frightening and unexplained blackouts, an abnormal rash appears on his rib that quickly begins to resemble a strange and mysterious shape, and his parents' marriage is torn apart by a terrible secret from the darkness of their past. When a series of sinister men come looking for him, Finn is forced to run. Hunted by relentless and savage enemies that lurk around every corner, he and his new friend, Felicity Gower, determine to discover the truth. But the truth will show them a new and dangerous world where nothing is impossible. A truth that some will look to exploit, but others are willing to kill to keep hidden forever.