Maintenance for the week of March 16:
• PC/Mac: No maintenance – March 16
• ESO Store and Account System for maintenance – March 18, 6:00AM EDT (10:00 UTC) - 4:00PM EDT (20:00 UTC)
First you are supposed to meet him in mages Guild in Wayrest, where he is incognito.
Then you should meet him in a ruin in Shornhelm (one of the open explroation dungeons) to collect 4 books.
Then you return to harborage to talk to the Prophet again.
It's basically a recycled Mage Guild intro quest with differing place for first and final quest char and Tharn as temporary companion.
If you think anything I or somebody else said violates the Rules of this Forum, you are free to flag my posts. Till I get any notifcaion from this, I just asume you know you have no case against me or Zenimax disagrees with you.