From Guild Wars 2 Wiki
| Find Ravious's lost rats around Lion's Arch.Part of the family.
|1||You spoke to Ravious and accepted his request to find his nine missing rats.||The Undermarket.|
|2||Find the lost rat in the Farshore Ward.||South of Cavern Waypoint, across from Tigg.|
|3||Find the lost rat in the Bloodcoast Ward.||North of Bloodcoast Ward Waypoint, near the cannons.|
|4||Find the lost rat in Sanctum Harbor.||Up the cliffs, east of Diverse Ledges Waypoint.|
|5||Find the lost rat in the Western Ward.||East of Western Ward Waypoint, on top of hill behind nearby vista. Normally only accessible via the Troll's Revenge jumping puzzle, but the Skyscale or Springer mounts can be used to reach it.|
|6||Find the lost rat in Commodore's Quarter.||West of Commodore's Quarter Waypoint on the roof. Normally only accessible via the Troll's Revenge jumping puzzle, but the Skyscale or Springer mounts can be used to reach it.|
|7||Find the lost rat in the Trader's Forum.||At the Frog Pond.|
|8||Find the lost rat in the Grand Piazza.||East of Lion's Court.|
|9||Find the lost rat in the Eastern Ward.||Center of Coriolis Plaza.|
|10||Find the lost rat in the Postern Ward.||Northeast of Guild Bluff Waypoint, on the path to Urmaug's Secret.|
|11||Return to Ravious in Hooligan's Route after finding all of his missing rats.||The Undermarket.|
- Added to the game with the March 27, 2018 update.