From publisher blurb:
Breach the palace. Purge corruption. Confront the Plague Lord’s servant.
The corruption runs deep in Tora Armis. The Astra Militarum have pried the gates open and reclaimed the outer zones of the spire, but Lord Van Staten’s palace pumps out poisonous heresy like a bloated heart pumps diseased blood. A team in service to Inquisitor Tytrona Dikaisune must lead an elite military strike team into the depths of a palace infected with Nurgle’s rot, confront the daemon responsible, and stop the sickness from spreading.
The third of four battlefield adventures set during the battle for Tora Armis, Lord of the Spire is a Tier-3 scenario for a group of elite Agents seconded to assist the Inquisition. The next part, Affliction Ascendant, will feature a Tier-4 squad of Space Marines on the same battlefield.