disguises. If a layman strays anywhere near one of
these arboreal retreats, a gunner thrusts out a visage enflamed with
righteous wrath, and curses him for giving the position away. But in
his hours of relaxation the gunner is a different being. He billets
himself in a house with plenty of windows: he illuminates all these by
night, and hangs washing therefrom by day. When inclined for exercise,
he goes for a promenade across an open space labelled--"Not to be used
by troops by daylight." Therefore, despite his technical excellence
and superb courage, he is an uncomfortable neighbour for
establishments like Hush Hall.

In this respect he offers a curious contrast to the Sapper. Off duty,
the Sapper is the most unobtrusive of men--a cave-man, in fact. He
burrows deep into the earth, or the side of a hill, and having secured
the roof of this cavern against direct hits by ingenious contrivances
of his own manufacture, constructs a suite of furniture of a solid and
enduring pattern, and lives the life of a comfortable recluse. But
when engaged in the pursuit of his calling, the Sapper is the least
retiring of men. The immemorial tradition of the great Corps to which
he belongs has ordained that no fire, however fierce, must be allowed
to interfere with a Sapper in the execution of his duty. This rule is
usually interpreted by the Sapper to mean that you must not perform
your allotted task under cover when it is possible to do so under
fire. To this is added, as a rider, that in the absence of an adequate
supply of fire, you must draw fire. So the Sapper walks cheerfully
about on the tops of parapets, hugging large and conspicuous pieces of
timber, or clashing together sheets of corrugated iron, as happy as a
king.

"You will find this house quite snug," continued the Brigadier. "The
eastern suite is to be avoided, because there is no roof there; and if
it rains outside for a day, it rains in the best bedroom for a week.
There is a big kitchen in the basement, with a capital range. That's
all, I think. The chief thing to avoid is movement of any kind. The
leaves are coming off the trees now--"

At this moment an orderly entered the room with a pink telegraph
message.

"Relief complete, sir!" announced the Brigade Major, reading it.

"Good work!" replied both Brigadiers, looking at their watches
simultaneously, "considering the state of the country." The Brigadier
of "A" rose to his feet.

"Now we can pass along quie