"Your uncle," he said, "and three or four of us whom you met last night, are engaged just now in a very important undertaking. I cannot explain it to you, but it involves a great many millions of dollars, more than we could any of us afford to lose, although, as you know, we are none of us poor men. Now we can carry this thing right through without bothering your uncle, and make a success of it, but there is just one thing we must have, and that is a paper which he has locked away in his study, and which is a sort of key to the situation.

Genre: Mystery