Of these three requisites the corpulent, complacent intriguer possessed only the first in a considerable degree. He could be exceedingly liberal with the foreign money which he had at his disposal. As for courage and ingenuity, he believed that he possessed both, but these qualities had not served him in very good stead in the attempts which he had made at different times to rescue the unfortunate members of the Royal Family from prison. His overwhelming egotism would not admit for a moment that in ingenuity and pluck the Scarlet Pimpernel and his English followers could outdo him, but he did wish to make quite sure that they would not interfere with him in the highly remunerative work of saving the Dauphin.

Heron’s impatient call roused him from these meditations. The little party had come to a halt outside a massive iron-studded door.

At a sign from the chief agent the soldiers stood at attention. He then called de Batz and the lanthorn-bearer to him.

He took a key from his breeches pocket, and with his own hand unlocked the massive door. He curtly ordered the lanthorn-bearer and de Batz to go through, then he himself went in, and finally once more re-locked the door behind him, the soldiers remaining on guard on the landing outside.

Now the three men were standing in a square antechamber, dank and dark, devoid of furniture save for a large cupboard that filled the whole of one wall; the others, mildewed and stained, were covered with a greyish paper, which here and there hung away in strips.

Heron crossed this ante-chamber, and with his knuckles rapped against a small door opposite.

“Hola!” he shouted, “Simon, mon vieux, tu es la?”

From the inner room came the sound of voices, a man’s and a woman’s, and now, as if in response to Heron’s call, the shrill tones of a child. There was some shuffling, too, of footsteps, and some pushing about of furniture, then the door was opened, and a gruff voice invited the belated visitors to enter.

The atmosphere in this further room was so thick that at first de Batz was only conscious of the evil smells that pervaded it; smells which were made up of the fumes of tobacco, of burning coke, of a smoky lamp, and of stale food, and mingling through it all the pungent odour of raw spirits.

Heron had stepped briskly in, closely followed by de Batz. The man Dupont with a mutter of satisfaction put down his lanthorn and curled himself up in a corner of the antechamber. His interest in the spectacle so favoured by citizen Heron had apparently been exhausted by constant repetition.