Professor Paradox, Gwen and others in “Time Heals”

Has been quite a day, hasn't it?

[startled] Would you stop doing that!

Oh. Very well, of I go. [walks away]

No! Please, don't go anywhere!

Actually in my case, it's less of a "where" than it is a "when".

You know what happened here?

You happened. When you went back in time and kept Kevin from mutating.

But that was the plan.

And every plan has unintended consequenses. For instance, Hex and Charmcaster tried to take over the world, as is their want. You, Ben and Kevin swung into action, you were humanity's last line of defense. Only, there was a weak link.

Me?

Oh no, dear. Not you. Kevin. Because you went into the past and undid that explosion, you kept him from mutating. Ergo, the new Kevin, or, eh, the old Kevin, lacked the powers that would have allowed him to stop Hex and so the bad guys won.

I didn't know.

I warned you that time travel is for immortals and fools. I'm the only immortal hereabouts. You do the math.

Where are Ben and Kevin?

Huh?!

Careful. Gravity is not your friend.

Kevin. What did she do to thim?

It amused her to bind him with the same spell she uses to control her rock creatures.

Oh, Clumsy, Clumsy Kevin! (chuckles)

Unh! Unh!