About Penumbrex

Penumbrex is a small independent publisher of puzzle and mystery books, built on a simple idea: books that are a pleasure to pick up and a pleasure to finish.

That means readable type, generous puzzle counts, and full solutions for everything — books you can dip into for five minutes or settle into for an hour. The Large Print series takes that further, with the biggest, boldest grids in the catalogue.

The catalogue started with word search: themes worth recognising, grouped by category, with coordinates in the solutions so you can always check your work. It now includes Sudoku, built to be solvable by logic alone with no guessing. Newer books also carry a bonus section at the back — mazes and a taste of the other puzzle types, in case something there catches you.

Puzzle, mystery, books. Still growing into all three.

The books are set by P. Penumbrex — who that is remains a question with a deliberately incomplete answer.

Every title is available on Amazon — you’ll find them all, with a look inside, in the catalogue.