Chapter Eighteen.
The Mysterious Cylinders.
After over two years of strenuous work without a holiday I found myself at length free, and I found myself one morning busy in my rooms in Curzon Street making final arrangements for a trip to Worcestershire to spend a fortnight with Doris and her mother in their lovely country home. I was jaded and fagged, for I do not mind confessing that my work recently had considerably affected me, and I was looking forward with eager anticipation to the delights of a stay in the country. I had not seen Doris for some months, though of course we were in constant communication, and I was naturally longing for a sight of her.
But I was destined to another disappointment. Just as I was finishing my packing the telephone rang. I found the call was from Morgan, one of the ablest of the Government Experts on Explosives, and he had a curious story to tell me. When I had listened to what he had to say I realised with a heavy heart that my long-promised holiday must be again postponed. I rang up Doris on the telephone and, having broken the news to her, hurried off to Morgan’s office.
I found the expert in a state of utter bewilderment. He was an acknowledged authority on explosives, but a problem had been set before him which had baffled him completely.
A few days previously a mysterious explosion had occurred in some public gardens at Mile End. While a keeper was clearing away a pile of rubbish he found a curious-looking metal cylinder lying in a flower-bed, and while he was examining it it exploded with a tremendous report, injuring the man so severely that he had to be taken, in a very critical condition, to the East End Hospital.
A search by the police had a curious result. In other flower-beds a number of similar cylinders were found. They were very tiny, being only about an inch and a half in length and about a quarter of an inch in diameter. They contained a substance which was evidently the explosive. At one end a piece of wire was attached, evidently as a means of exploding them, and at the other end was a strip of soft lead.
Morgan showed me some of the cylinders, and frankly confessed his ignorance of what they contained.
“I thought I knew every explosive in existence,” he told me, “but this is something entirely new. It must be tremendously powerful, judging by the size of the cylinders and the effect of the explosion on the unfortunate gardener who found the first one.” As I held one of the small cylinders, studying it with great care, an idea came to me.
“May I borrow this for a few days?” I asked. “I think I may be able to help you.”