Xargin Gravestone appears in the first volume of Solecism.
He confronts Sincere and Lamont after a short rest from their battles with Blue Rose. He first appeared to ask the brothers a question, but the brother refused to answer him, which forced him to get the answer that he sought by force. Seeing that the battle would end in nothing but a stalemate, he took his leave. However, he informed the brothers that they would smell the fragrance of Blue Rose by the end of the book
Powers and AbilitiesEdit
Nothingness Manipulation: He has the power to command Nonexistence itself. It can even bypass Lamont's defenses. He can even transport by stepping into nothingness.
Dimensional Slash: He is able to slash through the 4th dimension before he ever draws his blade.
Instant Point-to-Point Presence: He is allowed to reach his destination before ever leaving his starting point, regardless if his destination is in another dimension. He even did this when the brothers quantum jumped across a centillion amount of universes in a quantum frame of time.
Blue Frame: Each member of Blue Rose possesses a Rest Frame (a quantum gravitational field that resets the world line of a target or event to 0). The world line of an object is the unique path of that object as it travels through 4-dimensional space-time. It encompasses a large area of space-time and absolute position states — to reveal the nature of special relativity or gravitational interactions. They are a fundamental way of representing the course of events. To put it simply, a world line is the sequential path of personal human events (with time and space as dimensions) that marks the history of a person — starting at the time and space of one's alpha point until one's omega point. The world line is a form of quantum superposition.
Frozen Flame: It is the source of his power.
The Observer Effect: This is the ability to change phenomena being observed. This ability allows one to alter the state of what they measure. On this scale, one can choose to merely deny the existence of phenomena. One does not even have to consciously observe the event or phenomena to deny it.