The Dark Knight and The Fastest Man Alive, the two greatest detectives on any world, unite to explore the mystery behind a certain blood-stained smiley button embedded in the Batcave wall.
What starts as a simple investigation turns deadly when the secrets of the button prove irresistible to an unwelcome third party-and it’s not who anyone suspects!
It’s a mystery woven through time, and the ticking clock starts here!
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