The desert is already spreading east of Heiron Observatory. The jungle only proliferates in the west now.

Priests with the power of purification have been sent to stop the spread of the desert, but since the [plur]Lepharist Revolutionaries appeared in the jungle, the priests have been disappearing one by one without a trace.

Of course, it's important to find the priests, but what's more important is that we quickly eradicate the [plur]Pincerjaw Laupede and the [plur]Thorned Moonflower.

Go to Senea's Campsite and meet Royer there as soon as you've got rid of them.
You defeated the [plur]Pincerjaw Laupede and the [plur]Thorned Moonflower!

These creatures would seem incredibly strong to one person alone, but it still wasn't a problem for you, Player.