The search for the body of Rick Grimes (Andrew Lincoln) continues, only this time it's not just on AMC's The Walking Dead, but on a milk carton promoting the franchise's mobile game, The Walking Dead: Our World.In an image from the show's official Twitter account, we see the carton with a picture of Rick's face on it. Now, we know this doesn't exist in the series, but it's definitely an eye-catching call-to-action to drive fans to download the game.RELATED: The Walking Dead Star Has Discussed Potential Spinoff SeriesThe Walking Dead: Our World is a location-based augmented reality mobile game similar to Pokemon Go that allows roaming users to not just kill zombies, but to also collect characters from the franchise as well. It's a great piece of marketing, especially as it speaks to one of Season 9's major talking points -- the body of Rick being missing after he sacrificed himself in the fifth episode, titled "What Comes After."

Rick led a herd to a bridge over a river just outside Alexandria, before blowing it up and seemingly dying in the process. But as the show later revealed, his body was never found, which has kept a small glimmer of hope alive. Of course, this carton plays on the hope that Rick's body washed away, allowing him to survive.

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It'll be interesting to see if anyone playing the game does end up finding Rick, as the episode ended with him being taken away to recover in a covert location via a mysterious helicopter, which will be the focal point of his very own film trilogy.

The Walking Dead airs Sundays at 9 p.m. ET on AMC. The series returns for the second half of Season 9 on February 10.