But if not! ...

The thought was too awful for words.

I ground my teeth with futile rage, as the ideas of horrible possibilities swept through me.
Up to this morning Margaret's lapses into her new self had been few and hardly noticeable, save when once or twice her attitude towards myself had been marked by a bearing strange to me.

But today the contrary was the case; and the change presaged badly.

It might be that that other individuality was of the lower, not of the better sort! Now that I thought of it I had reason to fear.