Suicide Squad: Kill the Justice League is a game that lives up to its name, but the how of Task Force X’s mission to save Metropolis has left fans of Rocksteady Studios polarized. One such death in the game has been heavily criticized, but it might not be lights out just yet for a pivotal character in the Arkhamverse.

Spoilers for Suicide Squad: Kill the Justice League below.

If you’ve played the game or read any of the online discourse, you’ll know that Batman’s fate in Suicide Squad: Kill the Justice League is particularly grim. The Suicide Squad succeeds in taking down Batman in his Metropolis lair, and after allowing an Elseworlds Lex Luthor to run some experiments on him, the Dark Knight is summarily executed by Harley Quinn so that Superman can be lured out of Brainiac’s mothership.

It’s a shocking end to Batman, but one that might be kind of undone soon. A new video from Batman Arkham Videos has gathered up clues left behind in Metropolis, as players can hunt down 12 calendars spread across the city. Each one of these calendars has a specific date attached to them, and the December calendar in particular has a bat symbol on its highlighted day. This clue is also found in the park where the the Caped Crusader was gunned down, and as Batman Arkham Videos pointed out, converting the dates into letters based on the day of the month spells out the hidden message “He will return.”