How to Find and Kill The Deer (Lord Ruaidri)
Investigate Ardmel Trade Post
To locate The Deer, you’ll need to inspect a clue which can be found near the Ardmel Trade Post in the northeast of Ulster. The clue can be found at the small docks on the southeastern side of the trade post. Once you’ve read the contents of the clue, the identity of The Deer will be revealed as Ruaidri, he of the ports.
Find and Kill The Deer at Inch Lough Neagh Port
Now that you know the identity of The Deer, you can track him from the Children of Danu order menu. Mark the target from the menu and then make your way to port of Inch Lough Neagh, just southwest of Ardmel. The Deer could be anywhere in the port, but if you mark him from the menu you’ll be able to identify him quickly. You can also use Odin’s Sight to highlight him, and your bird to scout the area. When you’ve located him, it’ll be a simple matter of performing an assassination.