“I shall obey your wishes, of course, sir,” Granet promised. “I can assure you that I am quite a harmless person, though.”
“I do not doubt it, sir,” Sir Meyville replied, “but it is the harmless people of the world who do the most mischief. An idle word here or there and great secrets are given away. If you will allow me, I will show you a quicker way down the avenue, without going to the house.”
Granet shrugged his shoulders.
“Just as you will, sir,” he assented.
“You can go in, Isabel,” her father directed curtly. “I will see Captain Granet off.”
She obeyed and took leave of her guest with a little shrug of the shoulders. Sir Meyville took Granet’s arm and led him down the avenue.
“Captain Granet,” he said gravely, “I am an indiscreet person and I have an indiscreet daughter. Bearing in mind your profession, I may speak to you as man to man. Keep what you have seen absolutely secret. Put a seal upon your memory. Go back to Brancaster and don’t even look again in this direction. The soldiers round this place have orders not to stand on ceremony with any one, and by to-night I believe we are to have an escort of Marines here as well. What you have seen is for the good of the country.”
“I congratulate you heartily, sir,” Granet replied, shaking hands. “Of course I’ll keep away, if I must. I hope when this is all over, though, you will allow me to come and renew my acquaintance with your daughter.”
“When it is over, with pleasure,” Sir Meyville assented.
Granet stepped into his car and drove off. The inventor stood looking after him. Then he spoke to the sentry and made his way across the gardens towards the boat-shed.