Who is P. Penumbrex?

Some people ask it at a market stall, card in hand. Others type it into a search bar late at night, having just finished a puzzle and wondered who on earth set it.

Either way, it’s a fair question. And one we’re only ever going to half-answer.

First, the name

A penumbra is the soft edge of a shadow.

When something stands in front of a light, the deep, dark centre of the shadow it throws is called the umbra. But around that darkness lies a paler ring — half-lit, uncertain, where light and dark are still arguing over who wins. That in-between ring is the penumbra. Not quite bright. Not quite dark. The interesting part.

It’s a good word to keep in your pocket. It is also, as it happens, the closest thing to a full address we can give you for P. Penumbrex.

Then, the person

We can’t tell you much. But we can tell you the sort of person P. Penumbrex is.

Someone who loves a word hidden where you’d never think to look. Who finds a certain mischief in a maze. Who believes the best answer is the one you almost saw the first time — and lives for the small, quiet click of the moment a puzzle finally gives way.

Fond of: the small hours, strong tea, long walks where the light comes sideways off the Atlantic, and the particular satisfaction of a grid that comes out even.

Less fond of: being looked at directly.

And the “P.”?

That, we’re keeping.

The P. began as a small practical necessity — a form that wanted a first name and would not take no for an answer. But it suited P. Penumbrex so well that it simply stayed: a single initial, standing at the edge of the shadow, declining to step fully into the light.

What does it stand for? We have our theories. So, we suspect, do you.

If we ever meet at a stall somewhere along the west of Ireland, you’re very welcome to lean in and offer your best guess. The good ones, we remember.

The rest is in the books

Everything else worth knowing about P. Penumbrex is already in your hands, or a click away — word searches, mazes, and things hidden in plain sight, made in the west of Ireland and set with equal parts care and mischief.

More may come to light in time. Or it may not.

That, rather, depends on you.