Underworld ConnectionsSource Heroes of the Streets pg. 29
You know people and things that interact with the underworld, whether through crime syndicate connections or friends that literally dwell beneath the surface.
Benefit: You gain a +2 bonus on all Knowledge (dungeoneering) checks and Survival checks while underground or in urban terrain. Additionally, while within a settlement and attempting a check modified by that settlement’s corruption, crime, or economy modifiers (see Pathfinder RPG GameMastery Guide 205), you can use your knowledge of local contacts to gain a +4 bonus on that roll. However, if the check fails, anyone witnessing your attempt sees you committing some violation of local law.