But these at any rate I shall explain later, concisely and categorically, if it be necessary.

What I want to consult you about now is this: Margaret and I disagree on one point.

I am about to make an experiment; the experiment which is to crown all that I have devoted twenty years of research, and danger, and labour to prepare for.

Through it we may learn things that have been hidden from the eyes and the knowledge of men for centuries; for scores of centuries.

I do not want my daughter to be present; for I cannot blind myself to the fact that there may be danger in it--great danger, and of an unknown kind.