It happened suddenly; all at once he could no longer feel his daughter. While heavily absent, Leo could always feel them, could always at least vaguely sense them. It's hard to describe how the thread works between them. It's a general awareness and if he pulls on the thread hard enough, he can locate her, the same way he can locate Chris and Wyatt, the same way he can sense his charges.
It happens sometimes, if they go into the underworld, or they try hard enough to block him, the connection disappears, dulls; but this is different. It''s not the first time that he can't sense his daughter but it's the first time it truly seems concerning. Still, there are many logical explanations so he waits. It's a few days later there's a call from his wife; a call in his head, the same way the charmed ones had always beckoned him when needed. It's the first time he knows something is really wrong.
Piper confirms it. They'd all lost connection with Mel- Paige, Chris, Wyatt. Of course she's none too happy and the two get into one of their world-class spats, Piper demanding he finds her and fixes it. Now. He didn't need the incentive, orbing out on her to begin the investigation into where his wayward daughter was and what kind of trouble she'd gotten herself into this time.
It's not easy to find her without the thread that connects them all, without that connection, it's difficult to know where to start. Concern pulls at his gut, forming a pit in his stomach as the days go by. Finally, his investigation pays off. When he orbs in front of her, features are hard, but the pit in his stomach eases at seeing her physically unharmed.
" You've got a lot of explaining to do. "