The Law of the Four Just Men by Edgar Wallace

But for the fact that he was already the possessor of innumerable coats-of-arms, quarterings, family mottoes direct and affiliated, Leon Gonsalez might have taken for his chief motto the tag 'homo sum, nihil humani a me alienum puto.' For there was no sphere of human activity which did not fascinate him. Wherever crowds gathered, wherever man in the aggregate was to be seen at his best or worst, there was Gonsalez to be found, oblivious to the attractions which had drawn the throng together, intensely absorbed in the individual members of the throng themselves.

Many years ago four young men, wealthy and intensely sincere, had come together with a common purpose inspired by one common ideal. There had been, and always will be, such combinations of enthusiasts. Great religious revivals, the creation of missions and movements of sociological reform, these and other developments have resulted from the joining together of fiery young zealots.