She never misses." Duncombe thanked him, and hailed a carriage.
"Shall I give Mademoiselle any message ?" the man asked confidentially.
"I am going to call for her," Duncombe answered.

"If I do not find her I will return." To drive to the Rue Pigalle was an affair of five minutes only.

Duncombe climbed a couple of flights of narrow stairs, pushed open a swing gate, and found himself in front of an office, in which an elderly woman sat reading.
"Can you tell me where to find Mademoiselle Mermillon ?" Duncombe asked.
"Next floor; first door on the left," the woman answered.

"Mademoiselle is not often in at this hour, though." Duncombe thanked her, and climbed another flight of stairs.

He had to strike a match to look for a bell or knocker, and then found neither.