To get into the house and the chest, you can either pick the locks, or you can bribe, intimidate or persuade Jorgen (who works at the mill) to get the keys. You'll find the hilt in Morthal, in a chest inside Jorgen and Lami's House. Here's where you'll find the three pieces: The Keepers of the Razor, a notebook where he's kept track of the owners of the pieces. To help you out in your search, Silus will give you Since these pieces are still in Skyrim, Silus will offer you gold if you can track them down and deliver them to him. Mehrunes' Razor was stolen from the Mythic Dawn and separated into three pieces. Silus will tell you that after the Oblivion Crisis 150 years ago, When you reach the museum, you'll meet Silus Vesuius out front, and he'll give you this quest.
Museum Pamphlet, which will invite you to see the Museum of the Mythic Dawn in Dawnstar.
At some point after reaching level 20, a courier will come up to you and give you a