somebody's poisoned the waterhole!

"There is one marked peculiarity about this paper, a thing nobody seems to notice but myself, and that is that it changes as the light changes.

When the sun shoots in through the east window - I always watch for that first long, straight ray - it changes so quickly that I never can quite believe it.

That is why I watch it always.

By moonlight - the moon shines in all night when there is a moon - I wouldn't know it was the same paper.

At night in any kind of light, in twilight, candle light, lamplight, and worst of all by moonlight, it becomes bars! The outside pattern I mean, and the woman behind it is as plain as can be."