Take a hard look at this comic book cover. Now, focus in on the clock.
What do you see?
The latest issue of "Chrononauts" features a secret image hidden inside the clock's face and, according to the artist, only one in 15 people can see it.
Sean Murphy turned to Twitter last week to reveal that an hourglass is hidden in plain sight inside the clock.
"It's a semi-rare sporadic form of color-blindness due to abnormal wiring in occipital lobe," he explained in one tweet.
According to Murphy, artists and musicians are more likely to see the image because of the way their brain is wired.
Many individuals turned to Twitter to reveal that they could see the image — or express their frustration that they could not.
Can you see the hourglass?
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