Chasing Shadows

Objective

 * "Salvation reportedly has a spy inside the castle at Gran Soren. Mason asks you root out the cultist."

Details
Becomes available after completing the quest A Matter of Myrmidons. Given by Mason, who should be hanging around the fountain in Gran Soren.

Once accepted, pass between the Knights Mansion and Fournival Manor in the noble quarters at night.

Walkthrough
1. Wait/rest until nightfall

2. Go to the noble quarters (in front of castle)

3. Pass towards the northern corner of the Knights mansion

4. A cutscene will appear

5. Trail the suspicious person


 * Note- Make sure not to get too close to the person you're trailing.
 * Note - There are multiple short non-dialogue cut scenes while you trail the mystery man. You will have to run to catch up after these. The nice part is, the mystery man is the only bloke walking through this area of the city carrying a lantern so he's right easy to spot.

6. A cutscene will play when you reach the final destination

7. Report to Arsmith at the Alehouse.

WARNING: If you watch the duke before getting/doing this quest Mason will dissapear from Gran Soren and make his 'way to The Abbey making this quest impossible to GET or COMPLETE. Also blocking the opportunity to open Madeleine Shop and the quests around medeleine.'