He glanced over the ranks of the servants, who had started whispering among themselves, casting looks of awe, annoyance, or puzzlement at the two officers.

“Are you convinced that they are ignorant of the lady’s whereabouts?”

Von Namtzen narrowed his eyes, considering, but before he could reply, Grey became aware of a slight stir among the servants, several of whom were looking toward the door behind him.

He turned to see Tom Byrd standing there, freckles dark on his round face, and fairly quivering with excitement. In his hands were a pair of worn shoes.

“Me lord!” he said, holding them out. “Look! They’re Jack’s!”

Grey seized the shoes, which were large and very worn, the leather across the toes scuffed and cracked. Sure enough, the initials “JB” had been burnt into the soles. One of the heels was loose, hanging from its parent shoe by a single nail. Leather, and round at the back, as Tom had said.

“Who is Jack?” von Namtzen inquired, looking from Tom Byrd to the shoes, with obvious puzzlement.

“Mr. Byrd’s brother,” Grey explained, still turning the shoes over in his hands. “We have been in search of him for some time. Could you please inquire of the servants as to the whereabouts of the man who owns these shoes?”

Von Namtzen was in many ways an admirable associate, Grey thought; he asked no further questions of his own, but merely nodded and returned to the fray, pointing at the shoes and firing questions in a sharp but businesslike manner, as though he fully expected prompt answers.

Such was his air of command, he got them. The household, originally alarmed and then demoralized, had now fallen under von Namtzen’s sway, and appeared to have quite accepted him as temporary master of both the house and the situation.

“The shoes belong to a young man, an Englishman,” he reported to Grey, following a brief colloquy with butler and cook. “He was brought into the house more than a week ago, by a friend of Frau Mayrhofer; the Frau told Herr Burkhardt”—he inclined his head toward the butler, who bowed in acknowledgment—“that the young man was to be treated as a servant of the house, fed and accommodated. She did not explain why he was here, saying only that the situation would be temporary.”

The butler at this point interjected something; von Namtzen nodded, waving a hand to quell further remarks.

“Herr Burkhardt says that the young man was not given specific duties, but that he was helpful to the maids. He would not leave the house, nor would he go far away from Frau Mayrhofer’s rooms, insisting upon sleeping in the closet at the end of the hall near her suite. Herr Burkhardt had the feeling that the young man was guarding Frau Mayrhofer—but from what, he does not know.”