This image is perplexing people online because no-one can see what’s hiding in the picture.

At first glance it appears we are looking at a normal wall with a small rock embedded between two of the red bricks.

But, if you look closer you can see that something is emerging from the wall.

This optical illusion was originally posted on Reddit in December 2015, but it has started re-circulating again online since it’s still baffling viewers.

Despite the ash looking like a stone, it’s actually a Cuban cigar that has been nestled between two bricks.