This quest requires at least 2 players/teams to complete. There are two separate dungeons, each of which have levers that open doors in the other dungeon.
Walk Through
For this walk through, instructions for Team 1 refer to those players that enter the Upper Shade Stronghold (26+), and instructions for Team 2 refer to those players that enter the Shade Stronghold (31+).
Team 1: From the drop, head North and flip the lever on the North wall, which opens the first door for Team 2. Continue down the linear hall until you reach the next lever activated door.
Team 2: From the drop, head north through the first open door (Team 1 opened it), and flip the lever on then North wall, which opens the first door for Team 1. Continue down the linear hall until you reach the next lever.
Both dungeons are relatively straight and linear. Repeat the lever, door relationship back and forth until both parties reach rooms with a portals to the Upper Heart of Darkness and Heart of Darkness respectively. Take the portals.
Note: When you get to the lava pits, jump over them, don't jump in them.
Part 2: Upper & Lower Heart of Darkness
Team 1: From the drop, head South and use the second (middle) lever on your left, which opens the first door for Team 2.
Team 2: From the drop, head North and use the first lever on your left, which opens the first door for Team 1.
Team 1: Continue to move through the hallway until you get to a small 4-room offshoot, each of which contains a lever. Use the southwest most lever to open the final door for Team 2.
Team 2: Once through the door, take your first left at the bottom of the ramp and use the lever to open the next gate for Team 1.
Team 1: Once through the gate, continue until you reach the final room, where you'll the final lever on the North wall (under the statue). Flip the lever for Team 2, then kill the Upper Shadow Heart Leader and loot the Shadow Captain's Heaume from his corpse (drops 1 per kill).
Inside the Shade Stronghold
Lower Heart of Darkness
Lower Shadow Heart Leader
