Mark Anthony is a broad identifier and can be associated with different individuals across various professions, including authors. For instance, there are Mark Anthony the writer of fantasy and speculative fiction, known notably for his series "The Last Rune," and other individuals of the same name who might have written in different genres or professional fields. If you are referring to Mark Anthony the speculative fiction writer, he is an American author best known for his work in the fantasy genre, combining elements of magic, adventure, and alternate worlds. His "The Last Rune" series, which began with "Beyond the Pale," has been well received for its intricate plotting, character development, and unique blend of fantasy elements with a touch of modernity. Without more context, it's difficult to give a precise description of the correct Mark Anthony you're referring to, as there can be many authors with similar or the same names. If you can provide more context or details about which Mark Anthony you mean, I'd be better able to provide specific information.