And often times great groans and grievous stownds,
When too huge toile and labour them constraines;
And often times loud strokes and ringing sounds
From under that deep rock most horribly rebounds.
The cause, they say, is this. A little while
Before that Merlin died, he did intend
A brazen wall in compass, to compile
About Cayr Merdin, and did it commend
Unto these sprites to bring to perfect end;