The Flash (Volume 5) #20
Written by Joshua Williamson
Art by Neil Googe
Meena is back and is now an agent of Black Hole for some reason in this okay but forgettable issue focusing on Iris investigating grave robberies being perpetrated by Back Hole. Not much else to say about it.
The Flash (Volume 5) #21
Written by Joshua Williamson
Art by Howard Porter
Ok this is Part 2 of the Button crossover with Batman that began here. Flash is investigating what happened to the Reverse Flash in the Batcave. Barry decides to use the Cosmic Treadmill to follow the energy signature on the button to its source. Which honestly seems like a dumb move by the Flash considering what happened the last time he used it. Batman joins him (it is never really explained how Batman is just running behind the Flash on it) and they see elements of the timeline from before New 52 and Barry even says it is not an alternate universe but part of the stolen years! The real DCU IS BACK BABY! We see Martian Manhunter as forminmg the league and Identity Crisis and Barry’s death during the Crisis. I was smiling with joy as I read these pages.