A series of mysterious chalky shadow pictures have been spotted by Brighton blogger Sara, who has posted them on her blog, Thee Nook.

She says I have no idea who is responsible or why, but I find them strangely beautiful and look forward to stumbling across more."

Click through to the blog to see more pictures.

If you've seen any examples and taken a picture, please email them to me at jo.wadsworth@theargus.co.uk as I would like to start a gallery. I will also be forwarding them to Sara to add to her blog too.

Of course, if you're the artist who's been chalking up these shadowy delights, please get in touch!