Reaching the side entrance of the Conciergerie, he gave three knocks, and a grating was opened in the door.

"It is I—Citoyen Robespierre."

The gate swung back on its hinges, and a voice was heard exclaiming—

"Salut et fraternité, citoyen!"

It was Collas, the turnkey, on duty.

"I want Citoyen Fouquier-Tinville."

"He has not returned, citoyen."

Robespierre betrayed impatience.

"Can I do anything for you, citoyen?" said Collas.

"I wish to know if you have among your prisoners a certain Germain, lately at La Force prison."