That event came in the first week of July. The French, who, after losing Kemmel, had made a very fine stand at Locre, the vital gateway to the valley between the Scherpenberg and Mont Rouge, were now being relieved by the British along the line of the hills. After three days about Cassel, in reserve to the French XVI. Corps, the 36th Division relieved the 41st French Division on the northern skirts of Bailleul. Divisional Headquarters were established at Terdeghem, with a command post on the Mont des Cats prepared for emergencies. The sudden move had almost, but not quite, succeeded in spoiling a very fine Divisional Horse Show, held at Proven, in beautiful weather and surroundings, on July the 3rd. Upon this the officers of the neighbouring Belgian Cavalry Division, including an Olympic competitor, descended like wolves on the fold, giving a remarkable display of skill and horsemanship, and taking practically all the prizes for jumping events. The Division was to hold this line for upwards of two months, then to go forward upon the enemy's heels. Nor was it ever again to be forced to give ground. The gray blur on the horizon was brighter now; the light was not far off. FOOTNOTES: [54] The official description of the fighting on April 10th and 11th is the Battle of Messines, 1918. It is safe to prophesy that the official nomenclature will never in this case, nor in many others, become the popular one. The 108th Brigade also took part in the action officially known as the Battle of Bailleul, dated from the 13th to the 15th of April, 1918. [55] On this date there died, at Rouen, of wounds received in March, one of the most gallant and popular C.O.'s the Division ever had, Lieutenant-Colonel P. E. K. Blair Oliphant, C.M.G., D.S.O., who had served with it from earliest days, first with the 11th Rifles, and later in command of the 11th/13th Battalion of that Regiment. [56] Détachement des Armées du Nord. [57] The opening of the Amiens offensive. CHAPTER XIII BACK TO THE MESSINES RIDGE: JULY TO SEPTEMBER 1918