“Very well, then. We have best go and do something about these sirens – this spell will just have to wait until I have some time to spare for personal work.”

Starswirl did not know that he would never come back and finish his spell. It would lay in the castle on the Canterhorn long after the times and adventures of the Pillars, unfinished and forgotten, until many centuries later a unicorn as brilliant as he was would find it and finish it for him. But that is another story, and shall be told another time.