Just when it seems the tragedy of Sablier is on the verge of recurring at Isla Yura's residence, the sinister blade of the Headhunter swings once more. From the darkness where the mysteries of Fianna's House and Humpty Dumpty converge, one truth will come to light: an unmoving reality that is itself so shocking, it seems like an illusion...Will Oz and his allies ever recover?

As the tragedy of Sablier unfolds anew at Isla Yura's mansion, the sword of the Headhunter is brandished once more. In the pitch-blackness created by shrouded mysteries - Fianna's House, Humpty Dumpty - one truth comes to light. But is the price for this truth much too high?

The air of celebration surrounding fifteen-year-old Oz Vessalius's coming-of-age ceremony quickly turns to horror when he is condemned for a sin about which he knows nothing. He is thrown into an eternal, inescapable prison known as the Abyss from which there is no escape. There, he meets a young girl named Alice, who is not what she seems. Now that the relentless cogs of fate have begun to turn, do they lead only to crushing despair for Oz, or is there some shred of hope for him to grasp on to?

Oz. Leo. Inescapable tragedy assaults and binds the two. He is no more. That simple truth tears their hearts apart like castles of sand caving in . . . But will history repeat itself when, in the midst of their sorrow, the two are pitted against each other in a struggle that could end in catastrophe?

"The answer you seek lies within them." Oz Vessalius may have survived his stint in the Abyss, but he is no closer to discovering the truth behind the "sin" for which he was condemned. On the advice of a mysterious man who appeared to him when Alice regained the first of her memories, Oz, along with Alice and Pandora's Raven, embarks on a mission to investigate the site of his disastrous coming-of-age ceremony in search of answers. However, what begins as a simple investigation becomes the revelation of a harsher reality, which comes swooping down on Oz as the hands of the clock continue ticking away mercilessly...