I suppose I am to take as exact in every detail your account of all the strange things which happened whilst you were in Diana's Grove ?" "So far as I know, yes.

Of course I may be mistaken in recollection of some detail or another, but I am certain that in the main what I have said is correct." "You feel sure that you saw Lady Arabella seize the negro round the neck, and drag him down with her into the hole ?" "Absolutely certain, sir, otherwise I should have gone to her assistance." "We have, then, an account of what happened from an eye-witness whom we trust--that is yourself.

We have also another account, written by Lady Arabella under her own hand.

These two accounts do not agree.

Therefore we must take it that one of the two is lying." "Apparently, sir." "And that Lady Arabella is the liar!" "Apparently--as I am not." "We must, therefore, try to find a reason for her lying.