Brownsville herald. [volume] (Brownsville, Tex.) 1910-current, 1915-08-07
THlRTIETH EPISODE
BEHIND THE WATER DOOR,

Del Mar made his way cautiously
Llouth o. which he left the boat, after
escaping from the little steamer.
Quite evidently he was worried by
the failure 10 cut the great Atlantic
cable, and he was eager to see wheth-
er any leak had occurred In he or
gsnization which. as secret foreign
agent, he had SO carefully built up ia
America.
As he skirted the shore Of the
river. he came to a falls. Here he
moved ever more cautiously than be
fore, looking about to make certain
that no one had followed him.
II was a beautiful sheet OF water
that tumbled with q roar over the
ledge OF rock, then raced away swift
ly TO the sea in a cloud of spray.
Assured that he was alone. he ap-
preached q crevice in the rocks. near
the falls. With another hasty look
about. he reached in II pulled a
lever.
Instantly a most marvellous change
tool place. incredible almost beyond
belief. The yolume OF water that came
over the falls actually n rapidly de-
creased until IL almost stopped, drip
ping slowly In 4 thin veil. There vas
the entrance of a cave-literalIy hid
den behind the falls.
Del Mar walked in. Inside was the
entrance 10 another, inner cave, high
err up in the sheer stone OF the wall
that the waters had eroded. From the
floor 10 this entrance led a ladder.
Del Mar climbed ii, then stopped Just
inside the entrance to the inner cave.
For q momen he paused. Then he
pressed another lever. Almost imme-
diately the thin trickle Of water grew
until at last the roaring falls complete
ly covered the aye entrance. 1t was
4 clever ~concealment. contriyed by
damming the river above and arrang-
ing a new outlet controlled by Hood
gates.
There Del Mar stood, in the inner
cave A man sat at a table. a curious
gear fastened over his head and cover
ing his ears Before him Was a huge
apparatus from which fiared a big
b~luish-green spark, swapping and
cracking above the thunder OF the
waters. From the apparatus ran
wires apparently up through cables
that penetrated the rocky roof Of the
cavern and the river above.
II vas Del Mars secret wireless
station. close TO the hidden submarine
harpor which mad been established be
meath the innocent rocks OF the prom
ontory up the coast. a overhead
on the cliff over the falls, were the
anteunae OF the wireless.
How is she working" asked Del
Mar.
Pretty WELL" answered the man.
No interference I'm queried Del Mar,
adjusting the apparatus.
The man shook his head in the mega
tive.
We must get a quenched spark ap
paratus.' vent on Del Mar. pleased
that nothing was wrong here. This
rotary gap affair is out OF date. Is!
the way. | want you 10 be ready Y
send a message. tC be relayed acros!
10 our people. I've got 10 consult tLS
board below in the harbor first. how
ever. Ill send a messenger 10 ycu.
Very well. sir" returned tie man
saluting as Del Man went out.
Out at Fort Dale. Lieutenant Wood
ward was still entertaining his new
friend. Professor Arnold. and had IN
trcduced him TO Colonel Swift. II
commanding officer at the fort.
They were discussing the strang'
went OF the early morning. when al
orderly entered. saluted Colonel Swii
and handed him a telegram. Tn
colonel tore II open and read 1t. hi
a growing grave. Then he hande'
II 10 Woodward. who read:
.Washtuyfnn II a.