but there were plenty of stones, and stones might
answer. We had no objections. A stone might pos-
sibly penetrate to us once in a while, but it wasn't
very likely; we were well protected by boughs and
foliage, and were not visible from any good aiming
point. If they would but waste half an hour in stone-
throwing, the dark would come to our help. We were
feeling very well satisfied. We could smile; almost
laugh.

But we didn't; which was just as well, for we should
have been interrupted. Before the stones had been
raging through the leaves and bouncing from the
boughs fifteen minutes, we began to notice a smell.
A couple of sniffs of it was enough of an explanation --