The last lantern

The boats round the right-hand corner. The arched passage is now visible at close range: a former carriage entrance, wide enough for one boat at a time. The moving street water meets quieter water inside the sheltered courtyard. A pale stone joint above the water provides a fixed visual reference for its rise.
Anya: There. That arch leads through.

Yakov gauges the entrance with his boat alongside the wall. There is sufficient clearance above the seated crew, but less than when they left the landing. The second boat waits outside with Harly and Anya.
Yakov: One at a time. We can't linger in there.

The second boat waits outside the courtyard passage with the boatwoman, Harly and Anya. Silent staging panel.

First boat enters. Inside, the rear house's upper landing window faces the courtyard. The seamstress and her son are visible there. The boy holds up three fingers. The injured lodger sits just behind them.
Karen: Three in the back house.

Ronald looks towards the print-shop side. Through the open connecting doorway, Pavel is returning from the front signalling window with his lantern.
Ronald: And Pavel makes four.

Pavel reaches the rear landing window. For the first time, the boat crew is close enough to hear him.
Pavel: The man can't walk. I couldn't leave them.