_That part of the subject drops._ CANTELUPE, _who has not moved, strikes in again_. CANTELUPE. How was Trebell's guilt discovered? FARRANT. He wrote her one letter which she didn't destroy. O'Connell found it. WEDGECROFT. Picked it up from her desk . . it wasn't even locked up. FARRANT. Not twenty words in it . . quite enough though. HORSHAM. His habit of being explicit . . of writing things down . . I know! _He shakes his head, deprecating all rashness. There is another pause._ FARRANT, _getting up to pace about, breaks it_. FARRANT. Look here, Wedgecroft, one thing is worrying me. Had Trebell any foreknowledge of what she did and the risk she was running and could he have stopped it? WEDGECROFT. [_Almost ill-temperedly._] How could he have stopped it? FARRANT. Because . . well, I'm not a casuist . . but I know by instinct when I'm up against the wrong thing to do; and if he can't be cleared on that point I won't lift a finger to save him. HORSHAM. [_With nice judgment._] In using the term Any Foreknowledge, Farrant, you may be more severe on him than you wish to be. FARRANT, _unappreciative, continues_. FARRANT. Otherwise . . well, we must admit, Cantelupe, that if it hadn't been for the particular consequence of this it wouldn't be anything to be so mightily shocked about. CANTELUPE. I disagree. FARRANT. My dear fellow, it's our business to make laws and we know the difference of saying in one of 'em you may or you must. Who ever proposed to insist on pillorying every case of spasmodic adultery? One would never have done! Some of these attachments do more harm . . to the third party, I mean . . some less. But it's only when a menage becomes socially impossible that a sensible man will interfere. [_He adds quite unnecessarily._] I'm speaking quite impersonally, of course. CANTELUPE. [_As coldly as ever._] Trebell is morally responsible for every consequence of the original sin. WEDGECROFT. That is a hard saying. FARRANT. [_Continuing his own remarks quite independently._] And I put aside the possibility that he deliberately helped her to her death to save a scandal because I don't believe it is a possibility. But if that were so I'd lift my finger to help him to his. I'd see him hanged with pleasure. WEDGECROFT. [_Settling this part of the matter._] Well, Farrant, to all intents and purposes he didn't know and he'd have stopped it if he could. FARRANT. Yes, I believe that. But what makes you so sure? WEDGECROFT. I asked him and he told me. FARRANT. That's no proof. WEDGECROFT. You read the letter that he sent her . . unless you think it was written as a blind. FARRANT. Oh . . to be sure . . yes. I might have thought of that. _He settles down again. Again no one has anything to say._ CANTELUPE. What is to be said to Mr. O'Connell when he comes? HORSHAM. Yes . . what exactly do you propose we shall say to O'Connell, Wedgecroft? WEDGECROFT. Get him to open his oyster of a mind and . . .