The next night, September 6th, the _Wolf_, which was primarily a minelayer and not a raider, laid ninety-eight mines at a distance of from seven and a half to ten miles off shore. The lights of Singapore were plainly visible from the port-hole. On this occasion I was locked in the room for about two hours, but it was not difficult to count the "eggs" as they were being laid, for the mines came up out of No. 3 hatch on an elevator and were conveyed aft to the "chute" on a small rail car which had a flat wheel, and I could hear it going along the deck "humpety-hump, humpety-hump." I estimated that it took about one hour and forty minutes to lay these ninety-eight mines. From off Singapore we practically retraced our steps back through the Java sea and entered the Indian Ocean on October 9th, passing between the islands of Java and Canor. We then proceeded to the northward and westward until we arrived on the trade route running from Colombo to Delagoa Bay. Here _Wolf_ cruised around slowly for a day or so, crossing and recrossing the route at regular intervals. While lying here waiting for the prey, the wireless man told me he could hear several cruisers working their wireless and that there was one British cruiser patrolling the Straits of Malacca, one at Bombay, two lying in the harbour of Colombo--the _Venus_ and the _Vulcan_, I believe--and another at a naval station in the Mauritius Islands. All this time the bird, _i.e._, the _Wolf's_ hydroplane, had been down below in the hole undergoing general repairs from an accident she had had, which nearly ended her activities and drowned both of the operators.