Flash 21 -

In more recent stories (2025), The Flash #21 has explored even weirder cosmic horror.

In the 2013 New 52 continuity, The Flash #21 gave fans a long-awaited "race of the century" between Barry Allen and the impulsive teenager Bart Allen, also known as Kid Flash. Flash 21

: The issue features a shocking confrontation with Eobard Thawne, the Reverse-Flash, whose mysterious death sets the stakes for a reality-shattering adventure. In more recent stories (2025), The Flash #21