Cursed Dessert Part 2 (changing it into westmarches style game)

Adventure Type: Campaign + westmarches
Adventure Goal: Catch up with Jezzargo's Caravan part 2
Duration: 3-4h (we usually stay after the game to talk about the session)
XP Reward: varies
VTT: Roll20, watch2gether

PS!

If you are interested in joining this game, or any from this series, DM me please. You can bring your already existing character (up to level 4/5) or make a level 1 character (and hope to survive).

Story so far

Jezzargo’s caravan started its journey in Bazagon. He took with him ex-warden Kobalt, kobolds, damsels, bodyguards, and one scribe (almost all of them are running from something).
Destination? The Sarzalomian region of Phra’Tuul.

This adventure went through the Bazagonian sprawl and the sea (with some sightseeing on a small island). In Sarzalom, they went through fertile Sprey all the way to the gates of Misru. Recently, just before entering the Cursed Desert of Misru, our heroes were split from the caravan. Now they are looking for missing friends in this inhospitable place.

Other important things that happened along the way were:

A black comet with a golden tail appeared in the night sky. Its path led from west to east of Sarzalom. The last time a similar star was seen was before the fall of the Rukanians. That time, the comet came from the other way.
Sethessians: activity of the Chaos Serpent cult is becoming more frequent.
A seer is giving prophecies of change. People hear weeping in their dreams.
Something is waking up at the fringes of Sarzalom. What could it be?
Sortisa’s involvement is felt in these matters.