[Knight] The day is shining and new

Unless Terilith Jolar and Kaez starst to poke around in the shantytown the people are not inclined to discuss anything else with you. They want you to leave.

As you follow the map you got from the council halls, you get to the second address (point 2). It teams to be inside a fenced area. The first access point (point 1) is in the middle of the road

You enter not a sewer, but waterworks. Several pipes exits a huge water container that is closed with a heavy iron door.
There is a thick crystal or glass window in the iron door, and inside you see the water and a blue glow comming from deeper in the tank. The light flickers and big piece of ice pops to the surface. There is other movement in the water as well. You keep watching until a large creature forms out of the water and looks around.

Ice popping out of nowhere, water flowing out of the tank, this is one of the citadels portals to the elemental plane of water. The water creature is properly trapped in there