Board Thread:Online Discussion/@comment-107.145.249.30-20150201184157/@comment-76.106.120.228-20150427181651

Once you reach level 20 i think it is you will recieve a letter from a courier informing you of a Museum that has opened in Dawnstar. Once you get the invitation go to Dawnstar and talk to Silus to start the quest for Mehrunes Razor. I'm not sure if it can be started before you reach level 20 or not never attempted it.