Drums of the Dead: Book 3

From the introduction: A ritual to destroy Chult’s undead has backfired and unleashed an undead plague! The components needed to concoct an antidote have been identified, but need to be scavenged from the jungle. Meanwhile, Valindra Shadowmantle and Szass Tam are rallying the infected to conduct a massive assault on Port Nyanzaru. If they succeed, the results will be catastrophic. A 3-Hour D&D Epic Adventure for 1st-20th Level Characters