Party finds courtyard with smoked meat.
Party sees goblin come out to shack and return.
Party goes out to see shack, is caught in the act.
Big battle ensues, many goblins are killed, a humanish fellow is captured along with a couple goblins.
Goblins and sub-human are interagated and say they are in charge of opening the gate when the Dark Climbers come knocking.
Goblins are bound and let go into the catacombs.