You can find the Masked Assailant on the North West docks of the Sea Dog’s Tavern during Chapter Three of The Forsaken Hunter Adventure.
To start Chapter Three of The Forsaken Hunter, you must complete Chapter Two of the Adventure. To complete Chapter Two, you must first speak with Belle, recover ten pages of the Tattered Journal, and bring the restored journal back to Belle.
Once you have returned the complete Tattered Journal to Belle, you will unlock access to start Chapter Three.
If you need any help completing Chapter Two, you can use our detailed walkthrough here. We will show you how to find all ten pages of the journal as well as how to complete all five of the Adventure’s Deeds.