Assassin's Creed Origins: Complete The Mousetrap Quest

Walkthrough

1
Deploy Senu to scout the Cyrene Barracks and mark the captain (level 36), commander (level 37), guards (levels 34-35), and treasures.
2
Make your way west along the southern wall, then scale cliffs to the west to reach the southwestern edge of the barracks.
3
Scale a nearby building and walk across a rope to the north to reach the roof with the alarm brazier. Disable it.
4
Clear out the guards on the elevated western section of the fort.
5
Scour the walls for any remaining Romans.
6
Head north from the barracks' eastern gate into a building and loot the small white chest on the floor.
7
Return to the eastern gate, then head north to another building. Enter, go down the stairs behind the white curtain to reach the Roman infirmary.
8
Continue into a smaller room to the east to find a large red chest and a smaller box containing The Mouse's stash. Loot both.
9
Escape the barracks through the least guarded gate, avoiding confrontation if possible, especially with the stash.
10
If the stash glitches into the floor, reload the quest objective.
11
Make your way to, but not through, the northern gate of Cyrene, and follow the road east to The Mouse's house.
12
Head upstairs and walk into the quest objective with the chest to have Bayek place it down.
13
Talk to The Mouse to complete the quest.

Tips

The Cyrene Barracks is located in the northwestern corner of the low-lying parts of Cyrene, east of the Apollonion of Cyrene.
The stash can be temperamental and may glitch into the floor if set down. It's recommended to avoid setting it down.
If the stash glitches, reload the quest objective.
Escape through the least guarded gate to minimize confrontation.
Avoid going through the northern gate of Cyrene; follow the road east instead.
Ensure Bayek places the stash down on his own by walking into the quest objective.

For completing the Cyrene Barracks objective: 900 XP

For completing the quest “The Mousetrap”: 3,000 XP, 1,000 Drachmas