that he stumbled on the great discovery which was destined to cause all the trouble. How he first stumbled is not recorded; but early one morning Percy FitzPercy could have been seen like a terrier with his nose down a rabbit-hole, lying flat at the bottom of the trench, peering into a noisome and foul-smelling cavity underneath him.
"My dear old boy," he remarked, enthusiastically, to a brother subaltern, who was watching the proceeding coldly, "it's an old German dug-out; I'm certain it's an old German dug-out."
"I don't care a damn if it is," answered the other, without enthusiasm. "It stinks like a polecat, and is undoubtedly full of all creeping things. For heaven's sake, let's go and get something to eat."
Slowly and reluctantly Percy allowed himself to be led away, thinking deeply. Only the week before had the Hun attempted a raid and actually entered the trench close to the spot in question, and here was apparently a ready-made man-trap should he do so again. After breakfast he would explore his find; after breakfast he would himself set to work and labour unceasingly. As I have said, Percy FitzPercy meant well.
It is possible that lesser men might have been deterred by the unpromising results of that exploration. Descending gingerly through the hole, which had been widened sufficiently to allow of the passage, Percy switched his torch around the cavity he found himself in. Above his head long rounded timbers, side by side and touching one another, formed the
