Adocentyn
On the Eastern gate he placed the form of an Eagle; on the Western gate, the form of a Bull; on the Southern gate the form of a Lion; and on the Northern gate he constructed the form of a Dog. Into these images he introduced spirits who spoke with voices, nor could anyone enter the gates of the City except by their permission.
There he planted trees in the midst of which was a great tree which bore the fruit of all generations. On the summit of the castle he caused to be raised a lighthouse (rotunda) the colour of which changed every day until the seventh day after which it returned to the first colour, and so the City was illuminated with these colours.
Near the City there was abundance of waters in which dwelt many kinds of fish. Around the circumference of the City he placed engraved images and ordered them in such manner that by their virtue the inhabitants were made virtuous and withdrawn from all wickedness and harm. The name of the City was Adocentyn.
Picatrix
So this is what John Crowley was speaking of!!