The fortune of Thetford's brother was to rise from the success of artifices of which the credulity of Welbeck was to be the victim.

To detect and to counterwork this plot was obviously my duty.

My interference might now indeed be too late to be useful; but this was at least to be ascertained by experiment.
How should my intention be effected?
I had hitherto concealed from Welbeck my adventures at Thetford's house.

These it was now necessary to disclose, and to mention the recent occurrence.

My deductions, in consequence of my ignorance, might be erroneous; but of their truth his knowledge of his own affairs would enable him to judge.