My previous visit had shown me that access to "W. Mischen's" premises could be obtained without much trouble from the water front; and although I was by no means a professional housebreaker, I had no difficulty in finding a way into the unoccupied warehouse.
One of the windows was unfastened, and raising this cautiously I squeezed through. It was a large empty room, and as dark as a chimney; but I felt all round the walls until I came to a door and shutting that behind me I struck a match and found the way out on to the wharf.
Then I had a stroke of luck. Tied to the wharf on the opposite side from "W. Mischen's" was a small boat with the oars in it; and, perceiving the possible value of having a means of retreat by the river in case of trouble, I decided to borrow this and fasten it in readiness for use in emergency. I hauled it along to "W. Mischen's" landing stage and made it fast.
The night was very still. The silence on the river was unbroken except for the lapping of the water as it eddied past, and the occasional creak of the small boat as it gritted against the wharf.
On my former visit I had noted the position of the two doors opening from the building to the wharf. One was from the warehouse portion; the other from the offices; and the latter was unfastened. I would have given a good deal to have known whether this was due to the carelessness of the obliging young clerk, or whether it had been used that night by those who were in the building. If they were expecting any fresh arrivals by water the discovery of my boat might be very awkward.
Still I could not stay to count the risks, so I pushed the door open and entered. I remembered that there was a flight of stone steps leading to the upper part; but before going up, I crept into the offices and made sure that the men I sought were not there.
I found them empty, and retraced my steps and crept up the stairs, carefully feeling each step with my hands as I went. At the top the way was blocked by a door.
No light showed from the other side of it, however; and after listening intently, I turned the handle very slowly, pausing at each creak it gave, until it yielded. It was another big barn of a room with windows looking out over the river.
My eyes were now getting accustomed to the darkness, and, by the aid of the very faint light from the windows, I made out a heap of empty sacks in one corner. I was crossing towards these on tiptoe, when I heard the murmur of voices.
Glancing in what I judged to be the direction of the sound I saw a light through the crack of a door; and after a pause I stole over the sacks and concealed myself among them.