You might be interested in a new book by RW Holmen—Wormwood and Gall: The Destruction of Jerusalem and the First Gospel. This is a story of Markos (who wrote the Gospel of Mark).
Holmen uses current historical and archeological findings to give credence to one background possibility for the currently invisible Mark. The lens through which he works is the image used by James Carroll that the Christian scriptures are “war literature”. Holmen uses his experience of being an Army Ranger to inform his telling the time of Mark from the expulsion of the Roman Army to their return and destruction of Jerusalem and subsequent years to the writing of the first gospel. I can highly recommend this telling.
Holmen has also written: A Wretched Man: A Novel of Paul the Apostle and Queer Clergy: A History of Gay and Lesbian Ministry in American Protestantism. I also highly recommend both of these. He has additional books about his Army experiences available on Amazon.