Return to Hotel Sedgewick

Follow the Ghostbusters to the elevators, then into the staircase room beyond, where you heard a girl scream. After meeting with the hotel manager, climb the staircase to find a Broccoli Queen Autobiography artifact at the top, before following the Ghostbusters back to the previous room. After talking with the manager some more, equip your Shock Blast as you follow your team toward the kitchen, ready to blast several skeleton enemies that'll soon surround you.

With the enemies down, follow your team onward into the kitchen (Ray will open the door for you). Once inside, follow the right wall to find the door leading into the generator room--it's marked by a sign. Proceed through the hall within, kick your way through the gate, then interact with the panel on the backside of the generator to get that baby started.

Uh-oh, starting the generator has electrified the flooded basement! It seems a fallen lamp near the entrance is the cause; use the Slime Tether to pull the lamp from the water up to the ceiling, allowing you to rejoin your team and follow them back to the kitchen. Great, looks like there are several ghosts running amok in the kitchen. Because they like to slip through the walls so much, you're best off sticking to your standard Blast Stream, as its the easiest to target them with. Try to stick close to your teammates during this battle, and be sure to revive them whenever they go down so they can return the favor.

With the kitchen cleared, the Ghostbusters will lead you back to the elevators. Before hopping aboard though, you may want to follow your PKE to a small room within the main lobby (where the fountain is) to find a Swiss Death Clock artifact.

After riding the elevator, follow Egon down the hall to a door he kicks open. Before heading through, you may want to explore the nearest hall to find a room which has a Phantom Flush Toilet artifact in the bathroom.

Now continue past the staircase to find a web-covered hall. Get your Shock Blast ready, as many spiders will attack as you explore the hall. Turn left at the first intersection, then continue on until you automatically pause to listen to some ghostly happenings. Afterward, turn right to find the The Unruly Beard of V. Belascu artifact, before heading the opposite direction. Follow Egon to a web-covered door that you can uncover using the Slime Blower, allowing you to push through. Exit through the door on the right, then another on the left.

Proceed through the web-infested halls, and make a right through the short hotel-hallway section. Continue onward a ways until the next major split-path and turn left. Now whip out your PKE to close in on the ghostly signals until the spider-witch appears.

The Spider-Witch is a pretty easy boss. When she attacks, circle around her while shooting her with Shock Blasts. Occassionally, after a direct attack, she'll vanish in a poof, reappearing somewhere else. However, she'll also occassionally attach herself to one of the egg sacs scattered around the arena--use your PKE meter to quickly track her down and dislodge her with a quick blast before she "powers up," enabling her to unleash a powerful attack (which you should turn and run away from).