Baby Phantom Flash!
Danny Phantom gets de-aged to toddlerhood after an unexpected collision between his ghostly abilities and the Speed Force while visiting Clockwork, who had one of his exes with him.
The Speed Force gave Danny superspeed, as Clockwork told him he would help with a problem. The result? A baby ghost with super speed!
Clockwork, let it happen; it would just need one touch of Reverse Flash on Danny. that would let Clockwork be able to fully erase him from the time zone without breaking the laws.
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Danny, after that, ends up in Central City. He had no idea why he was in this world! And he wasn't even told why! But Clockwork told him this world has aliens! Time to search for aliens; they're so hard to find that they won't be.
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Barry has no idea what to say; he felt the new Speedster and then saw it was a toddler!
Iris is already looking like that! It's not his fault he wasn't able to catch the toddler! He has no idea why he can't catch him!
As long as Batman or the League doesn't learn about this, all is okay. The looks they will give him or the jokes.
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Danny was having fun when he found an Alien! who told him stories. As long as he doesn't try to capture him, all is okay.
J'onn smiled at the toddler; he seemed to love his stories about Mars. I'm still not sure how he even found out he was an alien.
He should talk with the league about the Toddler in the meeting later.