Vampires were on the ship, as passengers. But if i stuck with Sherlock Holmes, i would be safe. He had the uncanny ability to move among them undetected. We just sort of blended in with everyone else. There were a couple of close calls, though. They had herded us into stalls, and we were told to fill out and sign some card. He managed to avoid being put into a stall. I could see his head over the stall. He reached out his hand and gave a tug. I was able to vault over the stall, passed the female vamp in charge. Another time, for some reason, we almost got caught, but i managed to pull the cross necklace out of my shirt in time. It bought us a few moments to escape. The human passengers were oblivious to the danger they were in.