Pathfinder Kingmaker - Cursed Contagion

[Part of the Cursed story line]

The arrival of crazed beasts from portals at a cursed hill has citizens worried so new regent Lander invites delegations for a hunt! This all goes well until one of the attendants suddenly explodes into an owl bear? Upon investigation Jhod and Tristian discover this is due to portal seeds being ingested from the river and Kesten leads the investigation to a cult comprised mainly of stupid goblins intentionally spreading the contagion (because absolutely no one boils water before drinking it in fantasy realms).

Stupid contagion spreading goblins come in many forms.

His inside man goblin Nok-Nok reveals that the seeds come from high in the mountains (not the cursed hill) and are travelling down the river to the capital! They quickly rush to its defense as many citizens explode into horrible creatures that need slaying. One particularly large owlbear crushes Nok-Nok underfoot before order is restored.

While this happens Baron Siegfried leads his team to the source discovering it to be two giant plants, one blooming in a cave and the other blooming the world of fairies. To defeat it they must torch both at the same time so Siegfried, Octavia and Bouquet fight the fairy version while Valerie, Ekun and his wolf take the cave version. Alas Octavia is eaten by the fairy version of the plant but there is no time to save her as the cave team set their version on fire. The baron does the same and burns the horrible flora (and Octavia) to ash. He will never forget her screams.

With the threat ended there is some time to regroup and rebuild, until lady Jamandi Aldori tasks the baron with finding out what has happened to the neighboring land of Varnhold... whose citizens all seem to have gone missing.