It is a most extraordinary experience to follow up through this abandoned country from which the enemy has fled, as I have found to-day in tramping through the district of Péronne and into that deserted and destroyed town. A few weeks ago I went a journey to the new lines we had taken over from the French south of the Somme. Then it was under the full blast of shell-fire, and not a day passed without the enemy flinging high explosives into the ruined villages of Herbécourt, Estrées, Flaucourt, and Biaches. From Mont-St.-Quentin, on the flank of Péronne, he had the observation of all our ground, so that it was horrible to see that hill staring down on one, and by daylight in the open country one moved always under the menace of death. To-day that menace had gone. The evil spell had lifted, and we moved freely in the sight of Mont-St.-Quentin, unafraid and with a strange sense of safety. He had gone from there yesterday morning, and, at the same time, had crept away from the trenches at Biaches, and across his wooden bridges to Péronne, and out of this town to the open country, hurrying through the night to escape from our pursuit. I went down into Biaches, a wild chaos of trenches and dug-outs and ruin, and passed through the front line held by our troops until about 6.30 yesterday morning, and went with difficulty through the German barbed wire still uncut, so that we were tangled and caught in it. Then I passed into the old German lines, and went across the wooden causeway built by them over the marshes down to the bank of the Somme. On the other side of the river loop I saw for the first time Péronne, taken by the enemy in the autumn of 1914, and fought for furiously by the French, who regained it for a while and lost it again. It was dead quiet over there. No shell burst over it, but a little smoke rolled above its houses. From that distance, the broad river's width, it did not look much destroyed. It was only afterwards that I saw how much. Several wooden bridges spanned the Somme, and I tried two of these to get across, but there were great gaps which I could not jump. Before leaving the enemy had broken them and tried to hide the damage from the view of our airmen by putting up straw screens. All the trees in the marshes had been slashed by our shell-fire. Empty barrels floated in the water with broken boats, and the old barge, called Notre Dame d'Amiens, was blown in half. Snipers' posts had been built, outfacing our lines, and German ammunition and bombs and coiled wire and a great litter of timber lay about.