She appeared so very sure of herself that, against his will, the doctor obeyed.

‘Pretend to draw the bolts?’ he kept muttering.  Had the door been unbarred, then, all this while?

She was opening it, at any rate, when he returned to the passage.  But before lifting the latch she demanded, as if upon second thought,—­

‘Who is there?  And what is your business?’

‘Mr Rattenbury,’ answered a loud voice.  ’You shall know my business fast enough if you will kindly open.’

Without more ado she flung the door wide, and the ray of her lamp fell upon Mr Rattenbury, the young riding-officer, cloaked, high-booted, and spurred.

‘A strange business it must be, sir,’ said the widow, ’that brings you hammering up sick folk at this time of night!’

‘Sick folk, eh?’ said the riding-master, with a brusque laugh.  ’Sick folk don’t usually sit up till past two in the morning ready dressed.  Hadn’t we better stow that kind of talk, ma’am?’

‘You had better,’ Mrs Tresize answered composedly, ’hitch your horse’s bridle to the staple you’ll find on the left, and step inside—­that is, if you are not in too great a hurry.’  Here she turned for a look behind her.  ‘My goodness!’ she cried with a well-feigned start, ’if you haven’t scared the doctor into fetching a gun!’

Mr Rattenbury stared past her into the passage.  ‘Doctor Unonius?’ he exclaimed, catching his breath in surprise.

’At your good service, Mr Rattenbury, though you have given us a shock, sir.  May I ask what keeps you afoot to-night?  Not a run of goods, I hope?’

Mr Rattenbury stared at him.  If any one man in the whole countryside bore a reputation of simple probity, it was Doctor Unonius.  Impossible to connect him with tricks to defraud the Revenue!  And yet had not the young riding-officer distinctly seen Landaveddy show and anon eclipse a light, and in such a fashion that it could only be interpreted as a signal.

‘There has been a run, and an infernally daring one,’ said Mr Rattenbury; ’in Lealand Cove, not half an hour ago.  And the deuce of it is we had warning of it all along.’

‘Warning?’ echoed Mrs Tresize, with a touch of anxiety in her voice.

’Yes, ma’am.  It was known to us—­though I’ll not tell you how—­that Truman, the Grampound butcher, was acting freighter for a pretty large run, and for a week now two of my fellows have been at Grampound keeping an eye on him.  I sent over a relief this very afternoon, and the relieved men brought back the report that Truman had scarcely quitted his house for a week.  They left at four o’clock.  It was dusk, and he’d lit a couple of candles in his shop, and was seated there reading a newspaper.  Another thing put us off.  The boat chartered was the Bold Venture, with Cornelius Roose on board.  Cornelius—­as I dare say you have heard, doctor—­is the cleverest spotsman on this coast; but he was never