Gergely Dudás - Dudolf, Facebook

Gergely Dudás is at it again. The Hungarian illustrator, who is known to his fans as “Dudolf,” has spent the past several years delighting the internet with his hidden image illustrations, going back to the time he hid a single panda bear in a sea of snowmen in 2015. In the years since, he has played optical tricks with a variety of other figures, including sheep and Santa Claus and hearts and snails. For his latest brainteaser, which he posted to both his Facebook page and his blog, Dudolf is asking fans to find a pet ghost named Sheet in a field of white bunny rabbits.

As we’ve learned from his past creations, what makes this hidden image difficult to find is that it looks so similar to the objects surrounding it that our brains just sort of group it in as being “the same.” So you’d better concentrate.

If you’ve scanned the landscape again and again and can’t find Sheet to save your life, go ahead and click here to see where he’s hiding.