The Closed Book by William le Queux

At first I could scarce believe my own eyes. In the window, just as I had seen it on that fateful night, was the stuffed bear cub, and behind the smoky panes was a pale, haggard face peering forth wistfully, yet cautiously, as though in expectation of the passing of some person to whom the signal would convey a meaning, a face upon which anxiety and terror were betrayed -- the countenance of the woman I had so suddenly grown to love.

In an instant, at sight of me, she drew back and was lost to view, there remaining only that curious yet fatal sign that conveyed so much to the person or persons for whom it was exhibited.