That loud booming sound you just heard wasn’t Barry Allen breaking the sound barrier. It was the collective “thump!” of all of our jaws hitting the floor at once as we got to the end of THE FLASH #19.

Written by Joshua Williamson and drawn by the dynamic duo of Jesus Merino and Carmine Di Giandomenico, issue #19 is the final chapter in the two-part “Sins of the Father” storyline which sees Barry accompanying Kid Flash as Wally chases after the truth about his father, Daniel West, AKA the Reverse-Flash.

Fearing Daniel may have been a part of Amanda Waller’s Suicide Squad, Barry tracks down the one person he knows who’s painfully familiar with the Squad—Captain Boomerang. Finding his old rival attempting to infiltrate a family of weapons dealers known as the Weaver Clan, the Flash intervenes at the wrong time and finds himself their prisoner, alongside Wally and Digger.

Anyone who loves comics the way that we do know that the only way the two enemies are going to get out with their necks intact is by teaming up, which they do successfully…if not exactly gracefully. However, sometimes you have to be careful what you ask for, as Wally discovers when Boomerang reveals the tragic fate of his father.

Upset over the fact that he’ll never get the chance to confront his father and ask him why he made the decisions he made, Wally runs away. But Barry chases him down, revealing to his young protégé that he understands exactly what Wally is going through. However, that’s not all he reveals…

Unfortunately, the poignant moment between the two heroes soon turns sour when Wally discovers that Barry hasn’t shared his identity with his Aunt Iris. Believing his motivations for keeping the truth from Iris to be alarmingly similar to his father’s reasons for keeping secrets from him, he calls his friend and mentor a liar and bolts away again, this time asking Barry not to follow him.

Yet, painful as this may be for the Flash, a far bigger problem looms on the horizon. For within the walls of Iron Heights, lightning strikes and a familiar face emerges.

Yes, that’s Eobard Thawne, the original Reverse-Flash, for anyone keeping score. As he mentions, the last time anyone’s seen this particular version of Thawne was in Flashpoint where he LITERALLY HELPED RESHAPE THE ENTIRE DC UNIVERSE. So, uh, what does he do as an encore? Looks like we’ll have to pick up BATMAN #21 on April 19th to find out.

No, that’s not a mistake! This story picks up again in Batman #21, which kicks off the four-issue crossover known as “The Button.” It’s the next intriguing chapter in the ongoing mystery of Rebirth! However, if you’re wondering when you’ll get another dose of the Scarlet Speedster, look for his tale to continue in THE FLASH #20 on April 12th!