You and your closest friend had pushed opened the rotted door; immediately a foul choking green gas filled area around you. It was suffocating miasma that made your eyes burn and your skin rash. You barely managed to see the suits and slightly aged gas masks. Throwing them on.

The Coughing Ward is a sliver of the Domain of the Vexteria, the Lesser God of Disease and Madness. It takes the form of a abandoned crumpled asylum that has decayed and rotted away. Filled with vile creatures.

For those new, here is the start of the Dungeon of Change series: Darkwood

Generally recommended to start there to understand the lore a bit more and the character Anton Goebel.