Again it was decided to move the hospital; and again, before nightfall, the work was completed, including a still stronger and thicker boma. When the patients had been moved, I had a covered goods-wagon placed in a favourable position on a siding which ran close to the site which had just been abandoned, and in this Brock and I arranged to sit up that night. We left a couple of tents still standing within the enclosure, and also tied up a few cattle in it as bait for the lions, who had been seen in no less than three different places in the neighbourhood during the afternoon (April 23). Four miles from Tsavo they had attempted to seize a coolie who was walking along the line. Fortunately, however, he had just time to escape up a tree, where he remained, more dead than alive, until he was rescued by the Traffic Manager, who caught sight of him from a passing train. They next appeared close to Tsavo Station, and a couple of hours later some workmen saw one of the lions stalking Dr. Brock as he was returning about dusk from the hospital. In accordance with our plan, the doctor and I set out after dinner for the goods-wagon, which was about a mile away from our hut. In the light of subsequent events, we did a very foolish thing in taking up our position so late; nevertheless, we reached our destination in safety, and settled down to our watch about ten o'clock. We had the lower half of the door of the wagon closed, while the upper half was left wide open for observation: and we faced, of course, in the direction of the abandoned boma, which, however, we were unable to see in the inky darkness. For an hour or two everything was quiet, and the deadly silence was becoming very monotonous and oppressive, when suddenly, to our right, a dry twig snapped, and we knew that an animal of some sort was about. Soon afterwards we heard a dull thud, as if some heavy body had jumped over the boma. The cattle, too, became very uneasy, and we could hear them moving about restlessly. Then again came dead silence. At this juncture I proposed to my companion that I should get out of the wagon and lie on the ground close to it, as I could see better in that position should the lion come in our direction with his prey. Brock, however, persuaded me to remain where I was; and a few seconds afterwards I was heartily glad that I had taken his advice, for at that very moment one of the man-eaters--although we did not know it--was quietly stalking us, and was even then almost within springing distance. Orders had been given for the entrance to the boma to be blocked up, and accordingly we were listening in the expectation of hearing the lion force his way out through the bushes with his prey. As a matter of fact, however, the doorway had not been properly closed, and while we were wondering what the lion could be doing inside the boma for so long, he was outside all the time, silently reconnoitring our position.