I thought some one was behind me.

I felt--Is Ellen in the adjoining room ?" I jumped up and moved toward the door she indicated.

It was slightly ajar, but Ellen was not behind it.
"There's no one here," said I.
She did not answer.

She was bending again over her work, and gave no indication of speaking again on that or the more serious topic we had previously been discussing.
Naturally I felt disappointed.

I had hoped much from the conversation, and now these hopes bade fair to fail me.