Rue de Navarin

The Age Of Reason, p.34
Lola lived in a hotel in the Rue Navarin. She took her key off the board, and they walked silently upstairs. The room was bare, there was a trunk covered with labels in one corner, and on the farther wall a photograph of Boris stuck on it with drawing-pins.

The Age Of Reason, p.205-6
'Yes, the key is in Lola's bag, on the night-table. You will find a bunch of keys, and then a small flat key. That's the one.'
'What's the number of the room?"
'21, third floor, second room on the left'
'Right,' said Mathieu, 'I'll go.'