Tomb of Annihilation (5e)
The talk of the streets and taverns has all been about the so-called death curse: a wasting disease afflicting everyone who's ever been raised from the dead. Victims grow thinner and weaker each day¸ slowly but steadily sliding toward the death they once denied.
"When they finally succumb¸ they can't be raised - and neither can anyone else¸ regardless of whether they've ever received that miracle in the past. Temples and scholars of divine magic are at a loss to explain a curse that has affected the entire region¸ and possibly the entire world.
"The cause is a necromantic artifact called the Soulmonger¸ which is located somewhere in Chult¸ a mysterious peninsula far to the south¸ ringed with mountains and choked with rainforests.