But the trench has not fallen. As for him, he carried his pack for Ireland and Europe, and now pack-carrying is over. He has held the line. III.--RHAPSODY ON RATS What first strikes one in a trench is, contrary to report, not the Rat but the Slat. A trench-board is a sort of ladder, laid horizontally along a ditch of ill repute, and the rungs of this ladder are the slats. It is true that if this ladder were set upright it would be impossible to climb it, for the slats are too close together. Nevertheless, it has the form and aspirations of a ladder, and yearns towards the vertical. To follow the windings of the trench, this board is of necessity made in short sections. Now, one often enters a trench in the dark. Certain short boards have been displaced by the outgoing unit. An incautious foot, with, say, fifteen stone avoirdupois behind it, is set on one end, and the perpendicular ambition of the trench-board manifests itself in a jarring wallop of the other end on one’s tin hat. The slat decidedly strikes you. It is unpleasant to walk on, as anybody who has ever laboriously evaded coal-cellar gratings will realise. It exists in numbers that have never been counted. You can walk from the North Sea to the foot-hills of the Alps with the soles of your boots continuously beslatted, save where there is an odd broken board which there has not been time to repair. At the end of the war there will probably be slat-excursions organised by American tourist companies--they are said to have already purchased the ground--with the privilege to each pilgrim of removing one slat as a souvenir. What is to be said for them is that they stand between you and a flounder along the bottom mud. In winter, when the drainage improvisations prove false, and the fighting ditches run hip-high, the foothold is to be valued. And now as to the rats. Ratavia, as one may designate it, resembles China in that there has never been a census of its population, but that it approximates to the mathematical infinite. They are everywhere--large rats, small rats, bushy rats, shy rats and impudent, with their malign whiskers, their obscene eyes, loathsome all the way from overlapping teeth to kangaroo tail. You see them on the parades and the shelter-roofs at night, slinking along on their pestiferous errands. You lie in your dug-out, famished, not for food (that goes without saying), but for sleep, and hear them scurrying up and down their shafts, nibbling at what they find, dragging scraps of old newspapers along, with intolerable cracklings, to bed themselves. They scurry across your blankets and your very face. Nothing suppresses their numbers. Not dogs smuggled in in breach of regulations. Not poison, which most certainly ought not to be used. Not the revolver-practice in which irritated subalterns have been known to indulge. Men die and rats increase.