Ever since she came out after a rainstorm and broke her ankle, Klaus has insisted Estraeah bring her cellphone out into the forest with her. Maybe it would be better to just give her a call, make sure she's alright. He pulls his phone out of his pocket and calls Estraeah’s number. It rings a couple of times, but there is no answer. He sighs. Of course she won't answer.
The decision was not fruitless, however. Faintly in the distance, Klaus can hear her ringtone. So she did come out here after all. That answers that question.