Heron Lake Plateau i'm killing with that line tonight.

Fig paused to give his sister a baffled look as she backpedaled away from him. She looked displeased, as though he hadn't been screeching loud enough. The shifting of bodies in the den stole his attention briefly. He turned to look back as Towhee stretched and gave a yawn before rolling onto her side and going back to sleep. When he looked back around at Fen to tell her See? Towhee doesn't mind it!, he found that she had disappeared.

Sonofa--

The boy leaped to all fours and spun about, trying to locate Fen and failing. He began to whine as he abandoned the den's mouth to look outside, barreling through the grass as his whine grew higher and higher pitched. When he bashed his head against the bush his sister happened to be hiding in (a fact he remained oblivious to), he turned his back on it, gave one last wild look around, and began to caterwaul in an effort to call her back.