Convocation of Decay


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Synopsis
The Heroes are sent to the Shallyan Hospice in Helmgart to investigate Chaos magic around that area. They make their way through the desecrated hospice and find a tunnel leading into the sewers of Helmgart. From here, they follow a trail of blood and corpses to the town's cesspit and a connected cave system. Here they locate a cabal of Chaos sorcerers, and interrupt their ritual to summon a Chaos demon.

Sewers Event
In the Northern Maintenance Shaft, at the bottom of the elevator, you will find a number of gates on two different levels and suspicious bricks on the lower floor. Three subsequent gates upstairs needs to be opened, with the symbol on the gate corresponding to the brick that opens them. Every time a brick is pressed a small horde spawns. To proceed with the mission, press the bricks in the right order to open the three gates. However, pressing the wrong bricks opens up additional gates on the bottom floor, which lets additional enemies in.

Finale
The heroes enter a cave containing a central plateau with several pillars and walkways leading up to them. Three Chaos sorcerers are standing on the pillars and casting a ritual to summon a Chaos demon. The players must stay on the plateau around the pond of poison to disrupt the ritual, which will kill the sorcerers one by one. Stay on the outskirts as stepping in the poison will damage you and drain your stamina. Once the plateau is entered enemies will spawn (including Elites & Specials, survive until all sorcerers are dead and the ritual fails. Afterwards the heroes can escape through a Bridge of Shadows.

Post-Mission
After completing, Olesya will say the following.

Locations

 * Temple to Shallya:
 * Temple Hospice:
 * Book Repository:
 * Asylum Ward:
 * Temple District Cesspool:
 * Northern Main Tunnel:
 * North Maintenance Shaft:
 * Lower Maintenance Access:
 * Garrison Sewers:
 * The Forgotten Sewer:
 * Old City Cesspit:
 * Montfort Deep Shelter:
 * The Ducal Descent:
 * Carlomant's Memorium:
 * The Long Walk:
 * Carlomant's Crypt: