You see the moon in it?
No?
That is because it is covered so thick with weeds.

When you go down, mark how low it is.

There is little defence in the moat that a boy might wade through.

I have allowed it to get shallow in order to try upon its sides a new cement I have lately discovered; but weeks and weeks have passed, and I have never found the leisure, and now I am sure I never shall until this rebellion is crushed.

It is time I filled it.