Just a hint as to what, exactly can light the fire...
It's abundant, yet sometimes scarce.
It's simple, and incredibly necessary.
Every living being is made of mostly of it.
Usually, fire and it don't get along.
I know it doesn't rhyme, but I didn't need it to, they're all just one-sentence hints. It's okay if you can't figure it out, I'll have Anthony accidentally figure it out on his own in the next post. If you're willing to edit your post in to have one of the characters figure it out, then go for it.