The Dog

You say that the dog ate your homework…
Not your dog but “The” Dog, you say?
That sounds like a terrible creature.
I’ll try to stay out of its way.
It might be the king of all canines,
Existing for thousands of years
And larger than all of the others.
The one thing allaying my fears:
Its diet consisting of paper,
Especially homework, it seems.
Regardless, I don’t want to meet it.
It’s sure to start haunting my dreams.