WoW: Midnight - Ancient Anthropology

A pair of brothers who arrived at the Coiled Isle with Kul'amara have gone running off to the Whispering Marsh. One in particular who has heard news of an ancient crypt holding secrets of the Amani's past that have buried for centuries. Will this knowledge be worth retrieving, or will it result in catastrophe? Side quest chain requirement for "Snake Charmed, I'm Sure"