voice -> action
[He quickly turns on his device to respond-- he recognizes the area she's in, at least, thanks to massive amounts of exploring earlier during his stay.]
Ranka! It's me-- don't move, all right? I'll be right there.
[There's no room for choice right now. Her departure had been gnawing at him, worrying both himself and Sheryl. To see her now, even in a weird ass place like this, he had to see her as soon as he can.
So he's already turned the device off and running toward her current location.]