Today’s first glitch:
Dried-up needs a hyphen because it functions as a single adjective.
They trampled through the dried-up old trees, using only a torch and the waning moonlight to navigate the darkness.
The only error in this example was a missing hyphen, and the sentence contains “big words” (“big” because they’re not used in everyday conversation by people who don’t read much, not because they’re actually polysyllabic). Is this sort of thing even allowed? *sarcastic-editor grin*
I would consider replacing through with among or between, just for a bit more clarity.