The front cover art for The Hallmarked Man has been revealed!

The cover has appeared on just a few bookselling sites so far, having first been spotted on Apple Books US by our friends at The Strike and Ellacott files and tweeted here. No blurb has yet been released, although we expect this shortly, hopefully by late June or early July at the latest.
The building on the cover is The Freemasons’ Hall in Covent Garden, London.

J.K. Rowling’s first twitter header relating to this book was a photograph of the hall.

Here are some more pictures of the hall taken by the Strike Fans team:
She has also used as a header a picture of the narrow lane at the back of the Freemason’s Hall, Wild Court:

More photos of Wild Court here:
We will bring you news of the synopsis as soon as it is released!