"You have a light?" the stranger said in German in a curiously breathless voice. "I have just come upstairs and the wind blew out my candle and I could not get the door open. Perhaps you could ..." He broke off gasping and put his hand to his heart.

"Allow me," I said. The lock of the door was inverted and to open the door you had to insert the key upside-down. I did so and the door opened easily. As it swung back I noticed the number of the room was 33, next door to mine.

"Can I be of any assistance to you? Are you unwell?" I said, at the same time lifting my candle and scanning the stranger's features.

He was a young man with close-cropped black hair, fine dark eyes and an aquiline nose with a deep furrow between the eyebrows. The crispness of his hair and the high cheekbones gave a suggestion of Jewish blood. His face was very pale and his lips were blueish. I saw the perspiration glistening on his forehead.

"Thank you, it is nothing," the man replied in the same breathless voice. "I am only a little out of breath with carrying my bag upstairs. That's all."

"You must have arrived just before I did," I said, remembering the cab that had driven away from the hotel as I drove up.

"That is so," he answered, pushing open his door as he spoke. He disappeared into the darkness of the room and suddenly the door shut with a slam that re-echoed through the house.

As I had calculated, my room was next door to his, the end room of the corridor. It smelt horribly close and musty and the first thing I did was to stride across to the windows and fling them back wide.

I found myself looking across a dark and narrow canal, on whose stagnant water loomed large the black shapes of great barges, into the windows of gaunt and weather-stained houses over the way. Not a light shone in any window. Away in the distance the same clock as I had heard before struck the quarter—a single, clear chime.

It was the regular bedroom of the maison meublée—worn carpet, discoloured and dingy wallpaper, faded rep curtains and mahogany bedstead with a vast édredon, like a giant pincushion. My candle, guttering wildly in the unaccustomed breeze blowing dankly through the chamber, was the sole illuminant. There was neither gas nor electric light laid on.