"That's just what we have to discover, my dear fellow," laughed Ray.
"But if we are to get a peep inside the place it's evident we can only do so in the daytime. At night they are down there."
"At early morning," I suggested, "after they have left."
"Very well," he said; "we'll watch them to-night, and get in after they leave. I've brought a few necessaries in my bag--the set of housebreaking implements," he added, with a grin.
"Well," I said, "neither of us know much about wireless telegraphy.
Couldn't we get hold of an operator from one of the Wilson liners in dock, and take him along with us? A sailor is always an adventurer."
Ray was struck with the idea, and by eight o'clock that evening we had enlisted the services of a smart young fellow, one of the operators in the Wilson American service, to whom, in strictest confidence, we related our suspicions.
That night proved an exciting one. Fortunately for us it was cloudy, with rain, at intervals. Murphy, the wireless operator, listening under the wall declared that we were not mistaken. The men were sending messages in code.
"Most probably," he said, "they have another station across at Borkum, Wilhelmshaven, or somewhere. I wonder what they're at?" he added, much puzzled.
Through those long hours we watched anxiously; but just before the dawn Dubois and Busch lowered their apparatus from the top of the chimney, and a few minutes later emerged, walking together towards the hotel.
As soon as they were out of sight we held a consultation, and it was decided that, while Murphy and I kept watch for the police, Ray should use his jemmy upon the door and break it open. He would admit us and remain himself outside to give us warning.
Those moments were breathless ones.
We parted, the wireless operator walking one way, while I went in the opposite direction. Suddenly we heard the cracking of wood, followed by a low cough.
By that, we knew all was well.
We hurried back, and a few seconds later were in the courtyard of the disused factory. Ray had handed me his jemmy, and with it I broke open the second door of the empty place, flashing a light with the electric torch I carried.
We passed into the small office, but no second glance was needed to show that the place was completely fitted with a wireless installation of the most approved pattern.
"We'll try it," suggested young Murphy, and taking out the apparatus we hauled it up to the top of the chimney. Then re-entering the office, he placed the receiver over his ears, and listened intently, in his hand a pencil he had found ready upon the paper pad.
I stood watching his face. Apparently he heard nothing.
Then he touched the key of the instrument and instantly a great blue spark, causing a crackling noise, flashed across the room.
He was calling.
Suddenly his face brightened, and he was listening. Then he grew greatly puzzled.
Taking the receiver off his head he began to search the table upon which were several books; but at that instant I heard a light footstep behind me, and as I turned I felt a heavy crushing blow upon the top of my skull.
Then the blackness of unconsciousness fell upon me.
I knew no more till, on opening my eyes, I found myself lying in bed with a nurse bending over me.
I gazed around in amazement. There were other beds in the vicinity. I was in a hospital with my head tightly bandaged.
For a whole day and night I lay there, the nurse forbidding me to speak.
Then suddenly there entered Ray, whose arm was in a sling, accompanied by young Murphy.
"The spies came back--unexpectedly, and went for me before I could raise the alarm," Raymond explained. "Dubois hit you over the head with a jemmy, and by Jove! it's a mercy you weren't killed. He's cleared out of the country, however, fearing a charge of attempted murder. I've informed the police, and they are looking for both him and Busch, as well as Gessner, who is missing from Sydenham."
"Yes, but why had they established these two wireless stations?" I asked.
"Yes," replied Murphy, "it's a most ingenious piece of work. By some unknown means both the station here, and at Sydenham, had been tuned with the one which I daresay you've seen stretched across the top of the new Admiralty, in Whitehall, hence they could read all the orders given to the Home and Channel Fleets and the reports received from them, while I have to-day discovered that there is a similar secret station existing somewhere near Borkum also in tune with these, and with our Admiralty.
Therefore the Germans are aware of every signal sent to our Fleet! The station at Sydenham was only temporary, but the one here was evidently devised in order that the German admiral in the North Sea, on seizing Hull and establishing a base here, might have constant knowledge of our Admiralty orders and the whereabouts of our ships. When I was listening I was surprised at the code, but the truth was made plain by the discovery of a complete copy of the British naval code lying upon the table. By means of this, the spies could decipher all messages to and from our ships. The Civil Lord of the Admiralty and three officials have arrived in Hull, and I have been with them down at the factory this afternoon. The chief wireless engineer declares that the secret of the exact tuning must have been learnt from somebody in the office of the constructors."
And both Ray and I then remembered the man Fowler, who had, as we afterwards discovered, been on the verge of bankruptcy, and had suddenly gone abroad, a fact which was sufficiently instructive for our purpose.
Next day I was well enough to leave the hospital, and I guided the superintendent of the Hull police and two detectives to Busch's house, where, on searching his room, we discovered a volume of plans and reports of defences of the Humber and its estuary, estimates of food and fodder supplies in the country north of Hull, together with a list of the foreign pilots and their addresses, as well as an annotated chart of the river, showing the position where mines would be sunk at the river's mouth on the alarm of invasion.
But what, perhaps, would have been even more alarming to the general public, had they but known, was the discovery of several great bundles of huge posters ready prepared for posting up on the day of invasion--the Proclamation threatening with death all who dared to oppose the German landing and advance--a copy of which I have given in these pages.
It shows, indeed, what careful preparation our enemies are now making, just as the installation of the secret wireless showed the tactful cunning of the invader.
For our exertions, Raymond, Murphy, and myself received the best thanks of the Lords of the Admiralty, at which, I confess, we were all three much gratified.
CHAPTER XIV
PLAYING A DESPERATE GAME
On the 20th of December, 1908, it rained incessantly in London, and well I recollect it. After lunch I sat in the club-window in St. James's Street, idly watching the drenched passers-by, many of them people who were up from the country to do their Christmas shopping.
The outlook was a gloomy one; particularly so for myself, for I had arranged to spend Christmas with an aunt who had a pretty villa among the olives outside Nice, but that morning I had received a telegram from her saying that she was very unwell and asking me to postpone my visit.
The club was practically deserted save for one or two old cronies. Every one had gone to country houses, Ray was spending Christmas with Vera's father at Portsmouth, and in view of the message I had received I felt dull and alone. It is astonishing how very lonely a man may be at Christmas in our great London, even though at other times he may possess hosts of friends.
I had received fully a dozen invitations to country houses, all of which I had declined, and was now, alas! stranded, without hope of spending "A Merry Christmas," except in the lonely silence of my own bachelor chambers. So I smoked on, looking forth into the darkening gloom.
The waiter switched on the light in the great smoking-room at last, and then drew the heavy curtains at all the long windows, shutting out the dismal scene.
A man I knew, a hard-working member of Parliament, entered, threw himself down wearily and lit a cigar. Then, idler that I was, I began to gossip.
He was going up to Perthshire by the 11.45 from Euston that night, he remarked.
"Where are you spending Christmas?" he asked.
"Don't know," I replied. "Probably at home."
"You seem to have the hump, my dear fellow," he remarked, with a laugh, and then I confided to him the reason.
At last, about six o'clock, I put on my overcoat and left the club. The rain had now stopped, therefore I decided to walk along to my rooms in Guilford Street.