‘So kind of you to think well of me,’ he said, coolly flicking the ash off the end of his cigarette with his little finger; ’but why do you pay me such a compliment?’

Gollipeck answered the question by asking another.

‘Why are you so fond of toxicology?’ he said, abruptly, shuffling his feet in the long dry grass in which they were now walking in order to rub the dust off his ungainly, ill-blacked shoes.

Vandeloup shrugged his shoulders.

‘To pass the time,’ he said, carelessly, ’that is all; even office work, exciting as it is, becomes wearisome, so I must take up some subject to amuse myself.’

‘Curious taste for a young man,’ remarked the doctor, dryly.

‘Nature,’ said M. Vandeloup, ’does not form men all on the same pattern, and my taste for toxicology has at least the charm of novelty.’

Gollipeck looked at the young man again in a sharp manner.

‘I hope you’ll enjoy the book,’ he said, abruptly, and vanished into the house.

When he was gone, the mocking smile so habitual to Vandeloup’s countenance faded away, and his face assumed a thoughtful expression.  He opened the book, and turned over the leaves rapidly, but without finding what he was in search of.  With an uneasy laugh he shut the volume with a snap, and put it under his arm again.

‘He’s an enigma,’ he thought, referring to the doctor; ’but he can’t suspect anything.  The case may be in this book, but I doubt if even this man with the barbarous name can connect Gaston Vandeloup, of Ballarat, with Octave Braulard, of Paris.’

His face reassumed its usual gay look, and throwing away the half-smoked cigarette, he walked into the house and found Madame Midas seated in her arm-chair near the window looking pale and ill, while Archie was walking up and down in an excited manner, and talking volubly in broad Scotch.  As to Dr Gollipeck, that eccentric individual was standing in front of the fire, looking even more dilapidated than usual, and drying his red bandanna handkerchief in an abstract manner.  Selina was in another room getting a drink for Madame, and as Vandeloup entered she came back with it.

‘Good day, Madame,’ said the Frenchman, advancing to the table, and putting his hat and the book down on it.  ‘How are you today?’

‘Better, much better, thank you,’ said Madame, with a faint smile; ‘the doctor assures me I shall be quite well in a week.’

‘With perfect rest and quiet, of course,’ interposed Gollipeck, sitting down and spreading his handkerchief over his knees.

‘Which Madame does not seem likely to get,’ observed Vandeloup, dryly, with a glance at McIntosh, who was still pacing up and down the room with an expression of wrath on his severe face.

‘Ou, ay,’ said that gentleman, stopping in front of Vandeloup, with a fine expression of scorn.  ’I ken weel ‘tis me ye are glowerin’ at--div ye no’ ken what’s the matter wi’ me?’