Ancient Jew Review, which is not the Internet's best site for that - nor is it always Jewish - is hosting Evan Schafer's 23 March(?) review of Christopher Bonura's A Prophecy of Empire. According to the review, the book lifts the prophecy of the title, which it claimed for Mar Methodius, from the Singara / Sinjar highland. From that, it is transferred to the "East Syriac" world.
Pseudo-Methodius denied John's Revelation, instead dipping into Aphrahat's fifth memra (not "memro") on Daniel.
I took the liberty of searching for "Treasures" in the book. I don't find the word. I had the notion that everyone knew the apocalypse relied upon the Cave of Treasures but, it seems, not Bonura - nor Schafer. It is this, not the manuscript-tradition, which had this text for the Miaphysite world. I must say that Singara will do as well as any other monastic environment for an east-Syrian Miaphysite origin.
Where were the University of California's internal reviewers?