It's possible that I'm a complete moron, but I've looked over the map and the description of the River Queen a few times now, and I don't see any passageway from the main deck to the lower deck. The stairs down at the bow of the ship are walled off from the lower deck on the map, and only lead directly to the forecastle/magazine. The only place on the map that I can see that even offers access to the lower deck and the engine, is the latticed hatch in the floor of the main deck. The map of the lower deck shows light coming through to the floor through that hatch, but at no point does it reference a regular entrance or exit. Please help the illage vidiot out, and point me to the regular entrance for the lower deck.
Thanks