Stop erosion
The first surprise came fast enough the next day.
They came across waterfalls as far as the eye can see, full of yellow mud.
The water's frothing at the edges, while with each little waterfall, a little bit more of mud falls away from the rocks.
Just.. how is a man supposed to stop the flow of nature?
The waterfalls themselves are shallow, but they are spread out as far as the eye can see on a ridiculously flat sediment rock.
This way, even if she drops a thousand bombs right into the middle of the river, it still will not be enough to stop the flow of this shallow river!
Dang it!
She thought given all the weird plants in her hand, she should be able to do something here.
However, she should at least make an effort.
Thus, she removed her ubiquitous prop for water tiding, random roofing or plain setting things on fire.
Rice straw..