The man's linen was good if not expensively so, and the shirt was of a popular shade. All the clothes, in fact, had belonged to a man who either took an interest in clothes or was accustomed to the society of those who did. A salesman in a men's outfitter's, perhaps. As the Gowbridge people had said, there were no laundry marks. That meant either that the man had wanted to hide his identity or that his linen was washed habitually at home. Since there was no sign of any obliteration of marks it followed that the latter was the reasonable explanation. On the other hand, the tailor's name had been deliberately removed from the suit. That and the scantiness of the man's belongings pointed certainly to a desire on his part to conceal his identity.

Lastly — the dagger. It was a wicked little weapon in its viperish slenderness. The handle was of silver, about three inches long, and represented the figure of some saint, bearded and robed. Here and there it was touched with enamel in bright primitive colours such as adorn sacred images in Catholic countries. In general it was of a type fairly common in Italy and along the south coast of Spain. Grant handled it gingerly.

"How many people have had their hands on it?" he asked.

The police had commandeered it as soon as the man had arrived in hospital and it could be removed. No one had touched it since. But the expression of satisfaction was wiped from Grant's face when the information was added that it had been tested for fingerprints and had been found blank. Not even a blurred one spoiled the shining surface of the smug saint.

"Well," said Grant, "I'll take these and get on." He left instructions with Williams to take the dead man's fingerprints and to have the revolver examined for peculiarities. To his own sight it seemed to be an exceedingly ordinary service revolver of a type which since the war has been as common in Britain as grandfather clocks. But, as has been said, Grant liked to hear authorities on their own subject. He himself took a taxi and spent the rest of the day interviewing the seven persons who had been nearest the unknown when he collapsed the previous night.