Starman
"Oh great Starman, what shall we do?" Said the monsters,
Some red, some blue.
"We will attack at the birth of the night," Starman said, with a stern look, shining bright, "Under the sun's dying light."
"Our plan is perfect, no way can it fail!" Said the monsters,
Some red, some blue.
"Just be sure not to leave a trail," Starman said, looking down upon them, "Or we will be through!"
So Starman waited with the monsters.
Some red, some blue. One of them asked, "How much longer?"
As he complained, Starman exclaimed, "Shut your trap, or you will feel pain!" So they waited and waited, that time never came.
The problem they had was painfully clear. None of the monsters have broken a mirror? No, all they had to do was be more thorough, because they were hiding, in a burrow.