Rescue Tusker's "Special Friend" to earn his trust.
This quest is tricky to execute in its entirety. It requires a minimum Reputation of 300, or a level of 15 or more. If Scarlett meets the minimum Reputation requirement (300), she won't have to perform this quest to prove herself (the quest will not be offered.) If her reputation is under 300, Tusker will give her the quest, but she won't be able to complete it until she reaches level 15.
If Scarlett already has a Reputation of 300 or more, she will automatically be credited with completing this quest without actually having to do it. Otherwise, when she meets Tusker at his rooftop lair, he will ask her to rescue his special friend to prove that she's worth dealing with. Even so, she will need a minimum level of 15 to complete the quest (the guard won't accept her challenge otherwise.)
There is only one usable entrance to the catacombs in the Inner City (unlike the Outer City, which has four.) It's a sewer tunnel that opens into the canal at water level, in the canal just in front of the Tavern. Scarlett can use any of the many gondola stations along the canals to walk down the steps and into the water (Scarlett automatically begins swimming when she enters the water.) Then swim to the entrance (click on map to enlarge) and go in.
Tusker friend, a chap named Gio, can be found locked behind bars in the Inner City Catacombs, with an elite city guardsman on watch. From the catacombs entrance, Scarlett should turn right, on the platform and entering natural tunnel, then left when she comes to a sunken hallway. (Unless Scarlett previously killed The Gripper Queen (Inner City), she'll need to stay alert for them as she goes.
A guardsman stands watch outside a metal gate. Scarlett should speak to him and demand the release of the prisoner. Assuming she has reached level 15, he will fight her (to the death.) After defeating him, take the key from his body and enter the makeshift prison area. There's quite an array of torture equipment here as well, but Scarlett will find Gio standing in the back. Speak with him, and his rescue is complete.
|Note: : If Scarlett already has a Reputation of 300 or more when she visits Tusker at his Inner City rooftop lair, this quest seems to come and go so fast as to be unnoticeable: It is assigned while Scarlett speaks with Tusker, and immediately moves to the "Completed Quests" list, even though she hasn't rescued anyone (and she won't be able to challenge the guard and do the rescue on her own.)|
- The Pathway to the Claw - Scarlett will need to get aboard The Claw to rescue Sophistos. This is why she needs to earn Tusker's trust.