More than likely the unidentified rider was only another drifter.
The Euphrates was crossed at Birejil (Til Barsip ?), or Jerablus (Carchemish?), or Tell Ahmar (unidentified), or Thapsacus.
I might gradually let you know some pertinent stuff but mostly you'll just get tips, as far as you're concerned, from an unidentified source.
He swore the tip came from someone, unidentified, but close to the rapper.
655) But it is clear from the laws of iEthelberht that a regular silver coinage was in use at least half a century before this time, and it is not unlikely that many unidentified coins may go back to the 6th century.