Mysterious house down Little St Mary's Lane

Along Little St Mary's Lane leading to Peterhouse, there's a house with a black-painted front and the crescent moon symbol in the photo (which I dicked about with, to make it look spookier) hanging from a black-painted pole set into the front of the building.

Wossat all about, then? I'll be very disappointed if there isn't a coven of witches living there. It has two front doors, one white and one black. For good and bad witches, maybe?

"An ancient street with a long and chequered history. Little St Mary's Lane has been
in existence since at least 1300 and originally housed the bargees who brought corn and
coal along the river to the Mill Pool. It evolved from this commercial use and became
the houses of college servants in the late C19. The lane had a reputation as a 'red light area'
when the old Half Moon Inn moved from Trumpington Street to no 5 Little St Mary's
Lane in 1875. It apparently lost its licence in 1971 because of the behaviour of the 'licentious'
soldiers! Today the lane has been gentrified and is a quiet, mainly residential, street."

from https://www.cambridge.gov.uk/sites/www.cambridge.gov.uk/files/docs/his... - more details there. The black door of number 5 has no number. Curiouser and curiouser!

Ah, that'll be the answer, then. However, much as I like pubs I like the idea of it being a witch's house even more, so I'm going to forget I ever read that.

You may (or may not) be interested to learn that that house is actually an Ingress portal.

That book is behind the bar John.
Now where is ma magimix?