Winter Maze: Fantasy

Snow on the branches formed a pattern of interconnecting avenues that she stared through as though they were a forest of probabilities, and to her they were. The snow ate at her skin and she heard a howl of rage behind her, but she tilted her head to one side and saw the lattice of black branches against a white sky shift, slightly, enough that she knew where to step to go in. Her feet were numb but her step was sure, and she walked into the winter maze without hesitation. Another shout behind her, "No, Tanya, don't--!" Her father, come to the rescue too late. On time to save her from the others, too late to save her from herself. A wall of ice--

Inspiration: Leftover snippet of a Christmas card that I've been using as a bookmark, showing just branches of a snowy forest.
Story Potential: High?
Notes: I like the idea of a seasonal maze that does--something. I'm thinking like shaman selection or the like, but I don't know. But this almost isn't a story. But something about it pulls me...I blame it on being Minnesotan.