Uh-Oh. The Faeries are coming!

Come my good people,
to a world often scary.
Of Goblins, WannaBee-Bees
and Firewie-Faerwies.
Faeries are immortal –
and do liveth forever;
But one thing eludes them
in their endeavour;
To do what they want –
from Monday to Friday.
To never be sensible –
or keep their rooms tidy.