Undeterred by the loss of life, and encouraged by the manifest power of the contrivance, the Khalifa immediately ordered the second of the two boilers to be sunk in the stream. As the old Egyptian officer had been killed by the explosion, the Emir in charge of the arsenal was entrusted with the perilous business. He rose, however, to the occasion, and, having first taken the precaution of letting the water into the boiler so as to damp the powder, he succeeded in laying the second mine in mid-stream, to the joy and delight of Abdullah, who, not understanding that it was now useless, overwhelmed him with praise and presents. Beguiled with such stories and diversions, the day of rest at Wady el Abid passed swiftly. Night brought beetles, bugs, and ants, and several men were stung by scorpions--a most painful though not dangerous affair. Towards morning it began to rain, and everyone was drenched and chilled when the sun rose across the river from behind a great conical hill and dispersed the clouds into wisps of creamy flame. Then we mounted and set out. This day the army moved prepared for immediate action, and all the cavalry were thrown out ten miles in front in a great screen which reached from the gunboats on the river to the Camel Corps far out in the desert. When we had advanced a little further, there arose above the scrub the dark outlines of a rocky peak, the hill of Merreh. The whole of the 21st Lancers now concentrated, and, trotting quickly forward, occupied this position, whence a considerable tract of country was visible. We were hardly twenty-five miles from Khartoum, and of that distance at least ten miles were displayed. Yet there were no enemy. Had they all fled? Would there be no opposition? Should we find Omdurman deserted or submissive? These were questions which occurred to everyone, and many answered them affirmatively. Colonel Martin had meanwhile heliographed back to the Sirdar that all the ground was up to this point clear, and that there were no Dervishes to be seen. After some delay orders were signalled back for one squadron to remain till sunset in observation on the hill and for the rest to return to camp.