Leigh had naturally asked Kenyon for an explanation of his wild
excitement consequent upon the production of the treasured scrap of
paper, and for information concerning the murderer whom he designated as
"Zero," and these details the American had promised to give him the
moment he was absolutely sure that the man whom he now knew to be,
without a doubt, responsible for the deaths of Lady Drelincourt and her
infant son, was identical with the slaver for whom their party was
searching. Of this last he felt morally certain, for his deductions
had, all through, proved much too correct to turn out utterly wrong in
their final act: still it was a methodical and praiseworthy habit of
his, born of his wide experience amongst criminals of every class, to
impute nothing and to infer nothing which he could not prove up to the
very hilt, and there were, moreover, personal facts arising from the
explanation, facts of which his whole soul abhorred the revelation, and
of which nothing short of the iron hand of stern necessity would
persuade him to speak, even to Leigh.
By the camp fire that night the white men consulted long and earnestly,
whilst their sable followers crouched near them in the gloom, in abject
fear of the arrival of another unwelcome messenger from the mysterious
rifles of their unseen foes.
Not one single instant would these black fellows have remained beside
our two friends had they possessed even the ghost of a notion of where
to run to, but to their terror-stricken minds the whole vast unknown of
Central Africa, backed by their white masters, was preferable to facing
the certainty of having to retrace their undefended steps through the
Black Pass of the Dark Spirit of Evil, whose weird natural horrors were
so ably seconded by unseen, but none the less unerring, marksmen.
The conclusion that Leigh and Kenyon ultimately came to was, that they
had better coast round the slaver's supposed position in an easterly
direction, making themselves thoroughly acquainted with the general run
of the country, and keeping, meantime, their present distance from the
pass, gradually work in a semicircle until they again reached the
eastern exit of the kloof, when they would once more make a determined
and final effort to fathom the secret of the place; and in accordance
with this resolution the little band struck their tents at daybreak, and
to the delight of the natives once more turned their faces towards the
rising sun.
For a full hour the little party marched cheerfully eastwards, and then
their journeying in that direction was brought to a sudden and
unpleasant end by the two leading natives disappearing into the ground
without a moment's warning. No power on earth could save the wretched
men, who vanished into the morass--for such it was--ere any of the party
had even time to stretch out a hand to help them.
The rest of the black fellows drew cautiously away, with their teeth
chattering, and uttered cries indicative of intense fear, and no
possible argument would induce any of them to again take the lead, so
that Kenyon and Leigh had to get in front of the party and run the
entire risk, whilst these cowards leisurely and safely followed them at
a respectful distance.
The pair exercised very great caution, and soon grew to understand the
signs of this immense swamp, which they now endeavoured to skirt in a
northerly direction, and upon the dismal edge of which they camped again
that night.
The days that followed were days of anxiety, not to say despair, for the
very ground on which they trod would often shake and quiver beneath
their tired feet, and the whole party scarce knew whether each step that
was taken might not prove to be their last; and it was only after they
had manfully struggled northwards for close upon a hundred miles that
they were once more able to plant their feet on firm ground, and to
breathe freely, with the knowledge that the treacherous swamp lay, at
last, behind them.
After expending a couple of days in a much-needed rest, an experimental
trip was made in a south-easterly direction, with the object of
ascertaining if it were possible to force the slaver's supposed position
by an advance in that quarter, but something less than three miles again
brought the party into the dreaded swamp, from which they beat a hasty
and undignified retreat.
For a whole weary day our friends marched due east, and then had the
luck to fall in with a hunting party of friendly-disposed natives, from
whom Kenyon learned that they must compass another two days' journey
towards the rising sun, ere the swamp would permit them once more to
travel southwards.
This quivering, quaking morass was known to the natives by an awful
name, the nearest English equivalent for which appeared to be "the Mouth
of Hell itself;" and a truly awful tract of country it was, and of a
certainty merited most thoroughly this infernal denomination.
These people knew nothing of any way through the marsh, and ridiculed
the very notion of such a path existing, so that it was quite clear to
our friends that many days of weary travel must elapse ere they could
regain the eastern end of the kloof which they so eagerly sought to
reach.
To add to the troubles of the little band, first Leigh and then the
whole of their bearers, one after another, succumbed to swamp fever, and
Kenyon, who entirely escaped its influence, had--as may well be
imagined--his hands full for the next ten days. The American ascribed
his own immunity from fever, to his having choked off the malarial
microbes by almost incessant smoking, but if this view of the case were
correct, Leigh should also have been let down very lightly, whereas the
reverse obtained.
As soon as the men were sufficiently recovered to move, the whole party
dragged their fevered forms a day's journey from the edge of the marsh,
and again camping on high, firm ground, did simply nothing until they
had in some measure regained both health and vigour, after which they
more cheerfully resumed the road, and in another ten days were once
again posted in their old location near the entrance to the pass,
exercising the additional precaution, however, of walling in the camp
with a particularly spiky and impenetrable zareba of thorn-bushes, and
of placing a couple of men on guard at night.
The day following their arrival our friends decided to spend lazily in
camp enjoying a thorough rest; and it was whilst Leigh was dozing and
smoking by turns in the afternoon, that the ever active Kenyon stumbled,
by the merest chance, upon an important discovery--no less, in fact,
than the earnestly-desired key to the secret of the Black Pass. The
matter fell out thus: Kenyon having nothing else to do, had, on the
previous night developed several photographic negatives, and was now
taking advantage of the sun to print off a number of pictures.
As each view came out of the printing frame, it was in turn examined and
passed quickly into the fixing bath; but as he was, however, about to
slip into the bath a view of the pass, he suddenly paused spell-bound,
and forgetting his unfixed picture, held it in his hands, his eyes
keenly noting every detail of the place. The strong light, of course,
quickly turned the picture black, and with an exclamation of impatience
he resumed his cool manner, printed and fixed another positive, then
stowed away all his paraphernalia, and lighting his pipe, sat quietly
down and gave his whole attention to the photograph.
After carefully studying the picture for close upon an hour, throwing
now and again a keen glance at the gloomy-looking entrance to the kloof,
he gave a grunt of satisfaction, and put the view into Leigh's ready
hand, saying as he did so, "Well, old fellow, I have often heard the
remark that photography cannot lie, but never until now have I realised
the full force of the axiom. To-morrow, at daybreak, thanks to my
camera, we shall enter Master Zero's mysterious territory, and then it
will be diamond cut diamond with a vengeance."
Leigh was instantly alive with excitement, and this Kenyon quickly
relieved by his explanation, which, aided as it was by the little
picture, was as simple as it was lucid.