“Alright, where are these lights you were talking about?”
“Just to the right a bit. In this tunnel.”
Firn followed the girl in pitch black. He could see nothing, but she was outlined with darker shadow (as if that were possible). Shadow girl, popped his mind randomly. Where did that even come from? It was so abrupt, as if someone had whispered it in his ear.
He jarred his ankle on a rock.
“Gak! Curse my stupid legs!” Firn yelped,...

The tree shook violently, instantly waking up Firn and the girl. There was a loud growl beneath them.
"Oh no. It's a thorn tooth," the girl said frantically, "We have to get out of here."
She jumped out the entrance, with Firn right behind her. There was a large, green creature ramming into the bottom of the tree, as Firn could see now. It looked like a combination between a rhinoceros and a cat.
Firn grabbed a low branch. His...