At first the waiting among those iris-clad meadows was pleasant and idyllic enough; the country people brought abundant supplies, and members of the staff rode through the neighbourhood and had tea with various dignitaries of the Church; but early in May things took a turn for the worse. It was reported that the Tibetans were fortifying the Karo La, the next pass on the Lhasa road; and, since it is the first principle of frontier warfare to strike quickly, Colonel Brander was dispatched with the larger part of the garrison to disperse them. He performed the task with conspicuous success, and the incident is remarkable for one of the strangest pieces of fighting in our military history. It was necessary to enfilade a sangar in which the enemy was ensconced, and a native officer, Wassawa Singh, with twelve Gurkhas, was detached for the work. They climbed by means of cracks and chimneys up a 1,500 feet cliff--an exploit which would have done credit to any Alpine club, even if the climbers had not been cumbered with weapons, exposed to fire, and labouring at a height of nearly 19,000 feet. During the engagement disquieting news arrived from Gyangtse that the jong had been reoccupied by the enemy and that the Mission was undergoing a continuous bombardment. Colonel Brander hurried back, to find that the world had moved fast in his absence, and that there was a new type of Tibetan army to be faced--a type possessed of both dash and persistence, with some notion of strategy, and with guns which, at short range, could do real execution. So began the blockade of the Mission house; an imperfect blockade, for the telegraph wires remained intact, the mail was delivered with fair regularity, and the besieged endured no special privations. "The honours," says Mr. Perceval Landon,* "were pretty evenly divided. Neither the Tibetans nor we were able to storm the other's defences; a mutual fusillade compelled each side to protect its occupants by an elaborate system of traverses; and straying beyond the narrow tracts of the fortifications was, on either side, severely discouraged by the other." * _Lhasa_, by Perceval Landon. An attempt to cut our communications failed, and by the capture of Pala the garrison greatly strengthened its position. Our troops had an experience of the type of fighting which has scarcely been known since the great sackings of the Thirty Years' War. In an upland country we expect attacks on fortified hilltops, and long-range encounters, such as we saw in South Africa. But in an episode like the capture of Naini, it was mediæval street fighting that we had to face. The Castle of Otranto provided no more endless labyrinths than those Tibetan monasteries. "Bands of desperate swordsmen were found in knots under trap-doors and behind sharp turnings. They would not surrender, and had to be killed by rifle shots fired at a distance of a few feet."