[He's always prided himself on being a man of science, but lately, things science can't explain have become impossible to deny. That and - as he realizes in that very moment - he trusts Piper. Still. In fact, she might be the only one he still does.]

We'll get back to the barrier. I... I need to know more about this demigod thing. Who- I mean, how- How is that even possible?

[He brings a hand up through his bangs.]

I don't understand... And why didn't you tell me?