one o'clock
The offices of the Durend Company were situated in a separate building just inside the main entrance gates . The latter were ordinarily guarded by a watchman , but since the Germans had entered Liége a guard of German soldiers had been established there , and the sentinel on his beat passed within view of the front and two sides of the offices . It was pretty obvious , therefore , that the rear of the building would have to be the part attacked . It was close on one o'clock when Max and Dale scaled the outer wall well away from the entrance , and moved cautiously up to the rear of the building which was their objective . They had had only one alarm so far , and this had been so easily disposed of that they had begun to feel quite elated . `` This window gives access to the drawing-office , Dale , and ought to suit us well . Give me a lift on to the sill , and hand up the tools . ''